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/* |
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* sony.cpp - Replacement .Sony driver (floppy drives) |
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* |
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* Basilisk II (C) 1997-1999 Christian Bauer |
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* Basilisk II (C) 1997-2000 Christian Bauer |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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#define DEBUG 0 |
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#include "debug.h" |
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// Check for inserted disks by polling? |
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#ifdef AMIGA |
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#define DISK_INSERT_CHECK 1 // Check for inserted disks (problem: on most hardware, disks are not ejected and automatically remounted) |
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#define DISK_INSERT_CHECK 1 |
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#else |
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#define DISK_INSERT_CHECK 0 |
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#endif |
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uint32 SonyDiskIconAddr; |
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uint32 SonyDriveIconAddr; |
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// Flag: accRun called for the first time, run PatchAfterStartup() |
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static bool periodic_first_time = false; |
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// Flag: Control(accRun) has been called, interrupt routine is now active |
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static bool acc_run_called = false; |
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/* |
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/* |
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* Mount volumes for which the to_be_mounted flag is set |
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* (called during interrupt time) |
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*/ |
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static void mount_mountable_volumes(void) |
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{ |
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DriveInfo *info = first_drive_info; |
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while (info != NULL) { |
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#if DISK_INSERT_CHECK |
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// Disk in drive? |
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if (!ReadMacInt8(info->status + dsDiskInPlace)) { |
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// No, check if disk was inserted |
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if (SysIsDiskInserted(info->fh)) |
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SonyMountVolume(info->fh); |
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} |
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#endif |
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// Mount disk if flagged |
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if (info->to_be_mounted) { |
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D(bug(" mounting drive %d\n", info->num)); |
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M68kRegisters r; |
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r.d[0] = info->num; |
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r.a[0] = 7; // diskEvent |
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Execute68kTrap(0xa02f, &r); // PostEvent() |
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info->to_be_mounted = false; |
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} |
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info = info->next; |
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} |
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} |
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/* |
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* Driver Open() routine |
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*/ |
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// Set up DCE |
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WriteMacInt32(dce + dCtlPosition, 0); |
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WriteMacInt16(dce + dCtlQHdr + qFlags, ReadMacInt16(dce + dCtlQHdr + qFlags) & 0xff00 | 3); // Version number, must be >=3 or System 8 will replace us |
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periodic_first_time = true; |
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acc_run_called = false; |
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// Install driver again with refnum -2 (HD20) |
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uint32 utab = ReadMacInt32(0x11c); |
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case 9: // Track cache |
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return noErr; |
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case 65: { // Periodic action ("insert" disks on startup and check for disk changes) |
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DriveInfo *info = first_drive_info; |
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while (info != NULL) { |
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// Disk in drive? |
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if (!ReadMacInt8(info->status + dsDiskInPlace)) { |
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#if DISK_INSERT_CHECK |
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// No, check if disk was inserted |
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if (SysIsDiskInserted(info->fh)) |
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SonyMountVolume(info->fh); |
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#endif |
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} |
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// Mount disk if flagged |
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if (info->to_be_mounted) { |
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D(bug(" mounting drive %d\n", info->num)); |
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M68kRegisters r; |
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r.d[0] = info->num; |
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r.a[0] = 7; // diskEvent |
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Execute68kTrap(0xa02f, &r); // PostEvent() |
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info->to_be_mounted = false; |
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} |
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info = info->next; |
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} |
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if (periodic_first_time) { |
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periodic_first_time = false; |
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PatchAfterStartup(); // Install patches after system startup |
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} |
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case 65: // Periodic action (accRun, "insert" disks on startup) |
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mount_mountable_volumes(); |
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PatchAfterStartup(); // Install patches after system startup |
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WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000); // Disable periodic action |
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acc_run_called = true; |
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return noErr; |
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} |
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} |
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// Drive valid? |
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return paramErr; |
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case 8: // Get drive status |
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memcpy(Mac2HostAddr(pb + csParam), Mac2HostAddr(info->status), 22); |
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Mac2Mac_memcpy(pb + csParam, info->status, 22); |
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return noErr; |
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case 10: // Get disk type |
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return statusErr; |
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} |
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} |
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/* |
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* Driver interrupt routine (1Hz) - check for volumes to be mounted |
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*/ |
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void SonyInterrupt(void) |
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{ |
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if (!acc_run_called) |
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return; |
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mount_mountable_volumes(); |
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} |
