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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
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@ -13,6 +13,8 @@ SDiskSig:
.align 4 .align 4
RDiskSize: RDiskSize:
dc.l 0x00780000 dc.l 0x00780000
SDiskSize:
dc.l 0x80000000
DOpen: DOpen:
movem.l %A0-%A1, -(%SP) movem.l %A0-%A1, -(%SP)

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rdisk.c Normal file
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@ -0,0 +1,100 @@
#include <Memory.h>
#include <Devices.h>
#include <Files.h>
#include <Disks.h>
#include <Errors.h>
#include <Events.h>
#include <OSUtils.h>
#include <Quickdraw.h>
#include "rombus.h"
#include "rdisk.h"
OSErr RDOpen(IOParamPtr p, DCtlPtr d, RBStorage_t *c) {
// Find first available drive number for ROM drive
drvNum = RBFindDrvNum();
// Set ROM drive status
c->rdStatus.track = 0;
c->rdStatus.writeProt = -1; // nonzero is write protected
c->rdStatus.diskInPlace = 8; // 8 is nonejectable disk
c->rdStatus.installed = 1; // drive installed
c->rdStatus.sides = 0;
c->rdStatus.qType = 0;
c->rdStatus.dQDrive = drvNum;
c->rdStatus.dQFSID = 0;
c->rdStatus.dQRefNum = d->dCtlRefNum;
c->rdStatus.driveSize = RDiskSize / 512;
//c->rdStatus.driveS1 = (RDiskSize / 512) >> 16;
// Decompress ROM disk icon
src = &RDiskIconCompressed[0];
dst = &c->rdIcon[0];
UnpackBits(&src, &dst, RDISK_ICON_SIZE);
// Add ROM disk to drive queue and return
return RBAddDrive(c->rdStatus.dQRefNum, c->rdStatus.dQDrive, (DrvQElPtr)&c->rdStatus.qLink);
}
OSErr RDPrime(IOParamPtr p, DCtlPtr d, RBStorage_t *c) {
// Return disk offline error if virtual disk not inserted
if (!c->rdStatus.diskInPlace) { return offLinErr; }
// Get pointer to ROM disk buffer
disk = RDiskBuf + d->dCtlPosition;
// Bounds checking
if (d->dCtlPosition >= RDiskSize || p->ioReqCount >= RDiskSize ||
d->dCtlPosition + p->ioReqCount >= RDiskSize) { return paramErr; }
// Service read or write request
cmd = p->ioTrap & 0x00FF;
if (cmd == aRdCmd) { // Read
// Read from disk into buffer.
if (*MMU32bit) { BlockMove(disk, p->ioBuffer, p->ioReqCount); }
else { copy24(disk, StripAddress(p->ioBuffer), p->ioReqCount); }
} else if (cmd == aWrCmd) { return wPrErr;
} else { return noErr; } //FIXME: Fail if cmd isn't read or write?
// Update count and 1position/offset, then return
d->dCtlPosition += p->ioReqCount;
p->ioActCount = p->ioReqCount;
return noErr;
}
OSErr RDCtl(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c) {
// Handle control request based on csCode
switch (p->csCode) {
case kFormat: return controlErr;
case kVerify:
if (!c->rdStatus.diskInPlace) { return controlErr; }
return noErr;
case kEject:
// "Reinsert" disk if ejected illegally
if (c->rdStatus.diskInPlace) {
PostEvent(diskEvt, c->rdStatus.dQDrive);
}
return controlErr; // Eject not allowed so return error
case kDriveIcon: case kMediaIcon: // Get icon
*(Ptr*)p->csParam = (Ptr)c->rdIcon;
return noErr;
case kDriveInfo:
// high word (bytes 2 & 3) clear
// byte 1 = primary + fixed media + internal
// byte 0 = drive type (0x10 is RAM disk) / (0x11 is ROM disk)
*(long*)p->csParam = 0x00000411;
return noErr;
case 24: // Return SCSI partition size
*(long*)p->csParam = RDiskSize / 512;
return noErr;
default: return controlErr;
}
}
OSErr RDStat(IOParamPtr p, DCtlPtr d, RBStorage_t *c) {
// Handle status request based on csCode
switch (p->csCode) {
case kDriveStatus:
BlockMove(&c->rdStatus, &p->csParam, sizeof(DrvSts2));
return noErr;
default: return statusErr;
}
}
void RDClose(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c) { }

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rdisk.h Normal file
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@ -0,0 +1,101 @@
#ifndef RDISK_H
#define RDISK_H
#include "rombus.h"
#define RDiskBuf ((char*)0x40880000)
#define RDiskSize (*(const unsigned long*)0x40851D98)
OSErr RDOpen(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr RDInit(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr RDPrime(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr RDCtl(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr RDStat(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr RDClose(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
#define RDISK_ICON_SIZE (285)
#define RDISK_COMPRESSED_ICON_SIZE (87)
const char RDiskIconCompressed[RDISK_COMPRESSED_ICON_SIZE] = {
PackBits_Repeat(76), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(4), 0b11111111, /*
0b11111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(36),
0b10000000, 0b00000000, 0b00000000, 0b00000001,
0b10001111, 0b00011110, 0b00111100, 0b01111001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001111, 0b00011110, 0b00111100, 0b01111001,
0b11000000, 0b00000000, 0b00000000, 0b00000001,
0b01010101, 0b01010101, 0b11010101, 0b01010101,
0b01111111, 0b11111111, 0b01111111, 0b11111111,
PackBits_Repeat(12), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(76), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(32), 0b11111111, /*
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(1), 0b01111111,
PackBits_Repeat(3), 0b11111111, /*
0b01111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(1), 0b01111111,
PackBits_Repeat(3), 0b11111111, /*
0b01111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Repeat(12), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Literal(29),
27, 'G', 'a', 'r', 'r', 'e', 't', 't', '\'', 's', ' ',
'W', 'o', 'r', 'k', 's', 'h', 'o', 'p', ' ',
'R', 'O', 'M', ' ', 'D', 'i', 's', 'k', 0
};
#endif

166
rombus.c
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@ -5,11 +5,14 @@
#include <Errors.h> #include <Errors.h>
#include <Events.h> #include <Events.h>
#include <OSUtils.h> #include <OSUtils.h>
#include <Quickdraw.h>
#include "rombus.h" #include "rombus.h"
#include "rdisk.h"
#include "sdisk.h"
// Decode keyboard/PRAM settings // Decode keyboard/PRAM settings
static void RBDecodeSettings(Ptr unmountROMEN, Ptr mountROMEN, Ptr unmountSDEN, Ptr mountSDEN) { static void RBDecodeSettings(Ptr unmountROM, Ptr unmountSD, Ptr mountSD) {
// Sample R, S, X keys repeatedly // Sample R, S, X keys repeatedly
char r = 0, s = 0, x = 0; char r = 0, s = 0, x = 0;
long tmax = TickCount() + 60; long tmax = TickCount() + 60;
@ -26,36 +29,26 @@ static void RBDecodeSettings(Ptr unmountROMEN, Ptr mountROMEN, Ptr unmountSDEN,
RBReadXPRAM(1, 4, &legacy_startup); RBReadXPRAM(1, 4, &legacy_startup);
// Decode settings: unmount (don't boot), mount (after boot), RAM disk // Decode settings: unmount (don't boot), mount (after boot), RAM disk
if (x) { // X disables ROM disk and SD if (x) { // X disables SD
*unmountROMEN = 1; // Unmount ROM disk volume *unmountROM = 1; // Unmount ROM disk volume
*mountROMEN = 0; // Don't mount ROM later *unmountSD = 1; // Unmount SD volume
*unmountSDEN = 1; // Unmount SD volume *mountSD = 0; // Don't mount SD later
*mountSDEN = 0; // Don't mount SD later
} else if (r) { // R boots from ROM disk and mount SD later } else if (r) { // R boots from ROM disk and mount SD later
*unmountROMEN = 0; // Don't unmount so we boot from ROM *unmountROM = 0; // Don't unmount so we boot from ROM
*mountROMEN = 0; // No need to mount ROM later since already mounted *unmountSD = 1; // Unmount SD volume so we don't boot from it
*unmountSDEN = 1; // Unmount SD volume so we don't boot from it *mountSD = 1; // Mount SD later
*mountSDEN = 1; // Mount SD later
} else if (s) { // S boots from SD } else if (s) { // S boots from SD
*unmountROMEN = 1; // Unmount ROM disk volume so we don't boot from it *unmountROM = 1; // Unmount ROM disk volume so we don't boot from it
*mountROMEN = 1; // Mount ROM disk later *unmountSD = 0; // Don't unmount so we boot from SD
*unmountSDEN = 0; // Don't unmount so we boot from SD *mountSD = 0; // No need to mount SD later since already mounted
*mountSDEN = 0; // No need to mount SD later since already mounted
} else if (legacy_startup & 0x04) { // Boot from SD } else if (legacy_startup & 0x04) { // Boot from SD
*unmountROMEN = 1; // Unmount ROM disk volume so we don't boot from it *unmountROM = 1; // Unmount ROM disk volume so we don't boot from it
*mountROMEN = !(legacy_startup & 0x02); // Mount ROM disk later if setting *unmountSD = 0; // Don't unmount so we boot from SD
*unmountSDEN = 0; // Don't unmount so we boot from SD *mountSD = 0; // No need to mount later since already mounted
*mountSDEN = 0; // No need to mount later since already mounted
} else if (legacy_startup & 0x01) { // Boot from ROM
*unmountROMEN = 0; // Don't unmount so we boot from ROM
*mountROMEN = 0; // No need to mount later since already mounted
*unmountSDEN = 1; // Unmount SD volume so we don't boot from it
*mountSDEN = !(legacy_startup & 0x08); // Mount SD later if setting
} else { } else {
*unmountROMEN = 1; // Unmount ROM disk volume so we don't boot from it *unmountROM = !(legacy_startup & 0x01); // Unmount ROM disk if saved in PRAM
*mountROMEN = !(legacy_startup & 0x02); // Mount ROM disk later if setting *unmountSD = 1; // Unmount SD volume so we don't boot from it
*unmountSDEN = 1; // Unmount SD volume so we don't boot from it *mountSD = !(legacy_startup & 0x08); // Mount SD later if setting
*mountSDEN = !(legacy_startup & 0x08); // Mount SD later if setting
} }
} }
@ -83,6 +76,8 @@ OSErr RBOpen(IOParamPtr p, DCtlPtr d) {
int drvNum; int drvNum;
RBStorage_t *c; RBStorage_t *c;
char legacy_startup; char legacy_startup;
char *src, *dst;
OSErr ret;
// Do nothing if already opened // Do nothing if already opened
if (d->dCtlStorage) { return noErr; } if (d->dCtlStorage) { return noErr; }
@ -99,48 +94,26 @@ OSErr RBOpen(IOParamPtr p, DCtlPtr d) {
HLock(d->dCtlStorage); HLock(d->dCtlStorage);
c = *(RBStorage_t**)d->dCtlStorage; c = *(RBStorage_t**)d->dCtlStorage;
// Find first available drive number // Populate both drives' DrvSts and add each to drive queue
drvNum = RBFindDrvNum(); if (ret = RDOpen(p, d ,c) != noErr) { return ret; }
if (ret = SDOpen(p, d ,c) != noErr) { return ret; }
// Set drive status
//c->rdStatus.track = 0;
c->rdStatus.writeProt = -1; // nonzero is write protected
c->rdStatus.diskInPlace = 8; // 8 is nonejectable disk
c->rdStatus.installed = 1; // drive installed
//c->rdStatus.sides = 0;
//c->rdStatus.qType = 1;
c->rdStatus.dQDrive = drvNum;
//c->rdStatus.dQFSID = 0;
c->rdStatus.dQRefNum = d->dCtlRefNum;
c->rdStatus.driveSize = RDiskSize / 512;
//c->rdStatus.driveS1 = (RDiskSize / 512) >> 16;
// Decompress icons
char *src = &RDiskIconCompressed[0];
char *dst = &c->rdIcon[0];
UnpackBits(&src, &dst, RDISK_ICON_SIZE);
src = &SDiskIconCompressed[0];
dst = &c->sdIcon[0];
UnpackBits(&src, &dst, SDISK_ICON_SIZE);
// Add drive to drive queue and return
RBAddDrive(c->rdStatus.dQRefNum, drvNum, (DrvQElPtr)&c->rdStatus.qLink);
return noErr; return noErr;
} }
// Init is called at beginning of first prime (read/write) call // Init is called at beginning of first prime (read/write) call
static void RBInit(IOParamPtr p, DCtlPtr d, RBStorage_t *c) { static void RBInit(IOParamPtr p, DCtlPtr d, RBStorage_t *c) {
char unmountEN, mountEN, dbgEN, cdrEN; char unmountROM, unmountSD;
// Mark init done // Mark init done
c->initialized = 1; c->initialized = 1;
// Decode settings // Decode settings
RBDecodeSettings(&unmountEN, &mountEN, &dbgEN, &cdrEN); RBDecodeSettings(&unmountROM, &c->mountROM, &unmountSD, &c->mountSD);
// Unmount if not booting from ROM disk // Unmount if requested
if (unmountEN) { c->rdStatus.diskInPlace = 0; } if (unmountROM) { c->rdStatus.diskInPlace = 0; }
if (unmountSD) { c->sdStatus.diskInPlace = 0; }
// If mount enabled, enable accRun to post disk inserted event later // If mount enabled, enable accRun to post disk inserted event later
if (mountEN) { if (c->mountROM || c->mountSD) {
d->dCtlDelay = 150; // Set accRun delay (150 ticks is 2.5 sec.) d->dCtlDelay = 150; // Set accRun delay (150 ticks is 2.5 sec.)
d->dCtlFlags |= dNeedTimeMask; // Enable accRun d->dCtlFlags |= dNeedTimeMask; // Enable accRun
} }
@ -160,28 +133,11 @@ OSErr RBPrime(IOParamPtr p, DCtlPtr d) {
// Initialize if this is the first prime call // Initialize if this is the first prime call
if (!c->initialized) { RBInit(p, d, c); } if (!c->initialized) { RBInit(p, d, c); }
// Return disk offline error if virtual disk not inserted switch (p->ioVRefNum) {
if (!c->rdStatus.diskInPlace) { return offLinErr; } case c->rdStatus.dQDrive: return RDPrime(p, d, c);
case c->sdStatus.dQDrive: return SDPrime(p, d, c);
// Get pointer to ROM disk buffer default: return statusErr;
disk = RDiskBuf + d->dCtlPosition; }
// Bounds checking
if (d->dCtlPosition >= RDiskSize || p->ioReqCount >= RDiskSize ||
d->dCtlPosition + p->ioReqCount >= RDiskSize) { return paramErr; }
// Service read or write request
cmd = p->ioTrap & 0x00FF;
if (cmd == aRdCmd) { // Read
// Read from disk into buffer.
if (*MMU32bit) { BlockMove(disk, p->ioBuffer, p->ioReqCount); }
else { copy24(disk, StripAddress(p->ioBuffer), p->ioReqCount); }
} else if (cmd == aWrCmd) { return wPrErr;
} else { return noErr; } //FIXME: Fail if cmd isn't read or write?
// Update count and position/offset, then return
d->dCtlPosition += p->ioReqCount;
p->ioActCount = p->ioReqCount;
return noErr;
} }
#pragma parameter __D0 RBCtl(__A0, __A1) #pragma parameter __D0 RBCtl(__A0, __A1)
@ -191,41 +147,32 @@ OSErr RBCtl(CntrlParamPtr p, DCtlPtr d) {
if (!d->dCtlStorage) { return notOpenErr; } if (!d->dCtlStorage) { return notOpenErr; }
// Dereference dCtlStorage to get pointer to our context // Dereference dCtlStorage to get pointer to our context
c = *(RBStorage_t**)d->dCtlStorage; c = *(RBStorage_t**)d->dCtlStorage;
// Handle control request based on csCode // Handle control request csCodes common to both volumes
switch (p->csCode) { switch (p->csCode) {
case killCode: return noErr; case killCode: return noErr;
case kFormat: return controlErr;
case kVerify:
if (!c->rdStatus.diskInPlace) { return controlErr; }
return noErr;
case kEject:
// "Reinsert" disk if ejected illegally
if (c->rdStatus.diskInPlace) {
PostEvent(diskEvt, c->rdStatus.dQDrive);
}
return controlErr; // Eject not allowed so return error
case accRun: case accRun:
d->dCtlFlags &= ~dNeedTimeMask; // Disable accRun if (c->mountSD) { // Request to mount SD disk
c->sdStatus.diskInPlace = 8; // 8 is nonejectable disk
PostEvent(diskEvt, c->sdStatus.dQDrive); // Post disk inserted event
return noErr;
} else if (c->mountROM) { // Request to mount ROM disk
c->rdStatus.diskInPlace = 8; // 8 is nonejectable disk c->rdStatus.diskInPlace = 8; // 8 is nonejectable disk
PostEvent(diskEvt, c->rdStatus.dQDrive); // Post disk inserted event PostEvent(diskEvt, c->rdStatus.dQDrive); // Post disk inserted event
return noErr; return noErr;
case kDriveIcon: case kMediaIcon: // Get icon } else { // Nothing to mount
*(Ptr*)p->csParam = (Ptr)c->rdIcon; d->dCtlFlags &= ~dNeedTimeMask; // Disable accRun
return noErr;
case kDriveInfo:
// high word (bytes 2 & 3) clear
// byte 1 = primary + fixed media + internal
// byte 0 = drive type (0x10 is RAM disk) / (0x11 is ROM disk)
*(long*)p->csParam = 0x00000411;
return noErr;
case 24: // Return SCSI partition size
*(long*)p->csParam = RDiskSize / 512;
return noErr; return noErr;
}
case 2351: // Post-boot case 2351: // Post-boot
c->initialized = 1; // Skip initialization c->initialized = 1; // Skip initialization
d->dCtlDelay = 30; // Set accRun delay (30 ticks is 0.5 sec.) d->dCtlDelay = 30; // Set accRun delay (30 ticks is 0.5 sec.)
d->dCtlFlags |= dNeedTimeMask; // Enable accRun d->dCtlFlags |= dNeedTimeMask; // Enable accRun
return noErr; return noErr;
}
// Dispatch based on volume reference number
switch (p->ioVRefNum) {
case c->rdStatus.dQDrive: return RDCtl(p, d, c);
case c->sdStatus.dQDrive: return SDCtl(p, d, c);
default: return controlErr; default: return controlErr;
} }
} }
@ -237,11 +184,10 @@ OSErr RBStat(CntrlParamPtr p, DCtlPtr d) {
if (!d->dCtlStorage) { return notOpenErr; } if (!d->dCtlStorage) { return notOpenErr; }
// Dereference dCtlStorage to get pointer to our context // Dereference dCtlStorage to get pointer to our context
c = *(RBStorage_t**)d->dCtlStorage; c = *(RBStorage_t**)d->dCtlStorage;
// Handle status request based on csCode // Dispatch based on volume reference number
switch (p->csCode) { switch (p->ioVRefNum) {
case kDriveStatus: case c->rdStatus.dQDrive: return RDStat(p, d, c);
BlockMove(&c->rdStatus, &p->csParam, sizeof(DrvSts2)); case c->sdStatus.dQDrive: return SDStat(p, d, c);
return noErr;
default: return statusErr; default: return statusErr;
} }
} }
@ -250,7 +196,9 @@ OSErr RBStat(CntrlParamPtr p, DCtlPtr d) {
OSErr RBClose(IOParamPtr p, DCtlPtr d) { OSErr RBClose(IOParamPtr p, DCtlPtr d) {
// If dCtlStorage not null, dispose of it // If dCtlStorage not null, dispose of it
if (!d->dCtlStorage) { return noErr; } if (!d->dCtlStorage) { return noErr; }
//RBStorage_t *c = *(RBStorage_t**)d->dCtlStorage; RBStorage_t *c = *(RBStorage_t**)d->dCtlStorage;
RDClose(p, d, c);
SDClose(p, d, c);
HUnlock(d->dCtlStorage); HUnlock(d->dCtlStorage);
DisposeHandle(d->dCtlStorage); DisposeHandle(d->dCtlStorage);
d->dCtlStorage = NULL; d->dCtlStorage = NULL;

174
rombus.h
View File

@ -1,14 +1,10 @@
#ifndef ROMBUS_H #ifndef ROMBUS_H
#define ROMBUS_H #define ROMBUS_H
#include <Quickdraw.h>
#define RDiskBuf ((char*)0x40880000)
#define BufPtr ((Ptr*)0x10C) #define BufPtr ((Ptr*)0x10C)
#define MemTop ((Ptr*)0x108) #define MemTop ((Ptr*)0x108)
#define MMU32bit ((char*)0xCB2) #define MMU32bit ((char*)0xCB2)
#define RDiskSize (*(const unsigned long*)0x40851DAC)
#pragma parameter __D0 RBReadXPRAM(__D0, __D1, __A0) #pragma parameter __D0 RBReadXPRAM(__D0, __D1, __A0)
OSErr RBReadXPRAM(short numBytes, short whichByte, Ptr dest) = {0x4840, 0x3001, 0xA051}; OSErr RBReadXPRAM(short numBytes, short whichByte, Ptr dest) = {0x4840, 0x3001, 0xA051};
@ -25,6 +21,8 @@ typedef struct RBStorage_s {
DrvSts2 rdStatus; DrvSts2 rdStatus;
DrvSts2 sdStatus; DrvSts2 sdStatus;
char initialized; char initialized;
char mountROM;
char mountSD;
char rdIcon[RDISK_ICON_SIZE+8]; char rdIcon[RDISK_ICON_SIZE+8];
char sdIcon[SDISK_ICON_SIZE+8]; char sdIcon[SDISK_ICON_SIZE+8];
} RBStorage_t; } RBStorage_t;
@ -35,172 +33,4 @@ typedef void (*RBCopy_t)(Ptr, Ptr, unsigned long);
#define PackBits_Repeat(count) (-1 * (count - 1)) #define PackBits_Repeat(count) (-1 * (count - 1))
#define PackBits_Literal(count) (count - 1) #define PackBits_Literal(count) (count - 1)
#define RDISK_COMPRESSED_ICON_SIZE (87)
const char RDiskIconCompressed[RDISK_COMPRESSED_ICON_SIZE] = {
PackBits_Repeat(76), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(4), 0b11111111, /*
0b11111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(36),
0b10000000, 0b00000000, 0b00000000, 0b00000001,
0b10001111, 0b00011110, 0b00111100, 0b01111001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001111, 0b00011110, 0b00111100, 0b01111001,
0b11000000, 0b00000000, 0b00000000, 0b00000001,
0b01010101, 0b01010101, 0b11010101, 0b01010101,
0b01111111, 0b11111111, 0b01111111, 0b11111111,
PackBits_Repeat(12), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(76), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(32), 0b11111111, /*
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(1), 0b01111111,
PackBits_Repeat(3), 0b11111111, /*
0b01111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(1), 0b01111111,
PackBits_Repeat(3), 0b11111111, /*
0b01111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Repeat(12), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Literal(29),
27, 'G', 'a', 'r', 'r', 'e', 't', 't', '\'', 's', ' ',
'W', 'o', 'r', 'k', 's', 'h', 'o', 'p', ' ',
'R', 'O', 'M', ' ', 'D', 'i', 's', 'k', 0
};
#define SDISK_COMPRESSED_ICON_SIZE (86)
const char SDiskIconCompressed[SDISK_COMPRESSED_ICON_SIZE] = {
PackBits_Repeat(76), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(4), 0b11111111, /*
0b11111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(36),
0b10000000, 0b00000000, 0b00000000, 0b00000001,
0b10001111, 0b00011110, 0b00111100, 0b01111001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001111, 0b00011110, 0b00111100, 0b01111001,
0b11000000, 0b00000000, 0b00000000, 0b00000001,
0b01010101, 0b01010101, 0b11010101, 0b01010101,
0b01111111, 0b11111111, 0b01111111, 0b11111111,
PackBits_Repeat(12), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(76), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(32), 0b11111111, /*
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(1), 0b01111111,
PackBits_Repeat(3), 0b11111111, /*
0b01111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(1), 0b01111111,
PackBits_Repeat(3), 0b11111111, /*
0b01111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Repeat(12), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Literal(29),
26, 'G', 'a', 'r', 'r', 'e', 't', 't', '\'', 's', ' ',
'W', 'o', 'r', 'k', 's', 'h', 'o', 'p', ' ',
'S', 'D', ' ', 'D', 'i', 's', 'k', 0
};
#endif #endif

99
sdisk.c Normal file
View File

@ -0,0 +1,99 @@
#include <Memory.h>
#include <Devices.h>
#include <Files.h>
#include <Disks.h>
#include <Errors.h>
#include <Events.h>
#include <OSUtils.h>
#include <Quickdraw.h>
#include "rombus.h"
#include "sdisk.h"
static char SPI_SetCS(char cs) {
}
static void SPI_TX8(char d) {
}
static char SPI_RX8(char d) {
}
static void SPI_TX8_Slow(char d) {
}
static char SPI_RX8_Slow(char d) {
}
OSErr SDOpen(IOParamPtr p, DCtlPtr d, RBStorage_t *c) {
// Find first available drive number for SD drive
drvNum = RBFindDrvNum();
// Set SD drive status
c->sdStatus.track = 0;
c->sdStatus.writeProt = 0; // zero is writable
c->sdStatus.diskInPlace = 8; // 8 is nonejectable disk
c->sdStatus.installed = 1; // drive installed
c->sdStatus.sides = 0;
c->sdStatus.qType = 1;
c->sdStatus.dQDrive = drvNum;
c->sdStatus.dQFSID = 0;
c->sdStatus.dQRefNum = d->dCtlRefNum;
c->sdStatus.driveSize = SDiskSize / 512;
c->sdStatus.driveS1 = (SDiskSize / 512) >> 16;
// Decompress SD disk icon
src = &SDiskIconCompressed[0];
dst = &c->sdIcon[0];
UnpackBits(&src, &dst, SDISK_ICON_SIZE);
// Add SD disk to drive queue and return
return RBAddDrive(c->sdStatus.dQRefNum, c->sdStatus.dQDrive, (DrvQElPtr)&c->sdStatus.qLink);
}
OSErr SDPrime(IOParamPtr p, DCtlPtr d, RBStorage_t *c) {
return controlErr;
}
OSErr SDCtl(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c) {
// Handle control request based on csCode
switch (p->csCode) {
case kFormat: return controlErr;
case kVerify:
if (!c->sdStatus.diskInPlace) { return controlErr; }
return noErr;
case kEject:
// "Reinsert" disk if ejected illegally
if (c->sdStatus.diskInPlace) {
PostEvent(diskEvt, c->sdStatus.dQDrive);
}
return controlErr; // Eject not allowed so return error
case kDriveIcon: case kMediaIcon: // Get icon
*(Ptr*)p->csParam = (Ptr)c->sdIcon;
return noErr;
case kDriveInfo:
// high word (bytes 2 & 3) clear
// byte 1 = primary + fixed media + internal
// byte 0 = drive type (0x00 is ??)
*(long*)p->csParam = 0x00000400;
return noErr;
case 24: // Return SCSI partition size
*(long*)p->csParam = SDiskSize / 512;
return noErr;
default: return controlErr;
}
}
OSErr SDStat(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c) {
// Handle status request based on csCode
switch (p->csCode) {
case kDriveStatus:
BlockMove(&c->sdStatus, &p->csParam, sizeof(DrvSts2));
return noErr;
default: return statusErr;
}
}
void SDClose(IOParamPtr p, DCtlPtr d, RBStorage_t *c) { }

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sdisk.h Normal file
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#ifndef SDISK_H
#define SDISK_H
#include "rombus.h"
#define SDiskSize (*(const unsigned long*)0x40851D9C)
OSErr SDOpen(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr SDInit(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr SDPrime(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr SDCtl(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr SDStat(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
OSErr SDClose(CntrlParamPtr p, DCtlPtr d, RBStorage_t *c);
#define SDISK_ICON_SIZE (285)
#define SDISK_COMPRESSED_ICON_SIZE (86)
const char SDiskIconCompressed[SDISK_COMPRESSED_ICON_SIZE] = {
PackBits_Repeat(76), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(4), 0b11111111, /*
0b11111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(36),
0b10000000, 0b00000000, 0b00000000, 0b00000001,
0b10001111, 0b00011110, 0b00111100, 0b01111001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001001, 0b00010010, 0b00100100, 0b01001001,
0b10001111, 0b00011110, 0b00111100, 0b01111001,
0b11000000, 0b00000000, 0b00000000, 0b00000001,
0b01010101, 0b01010101, 0b11010101, 0b01010101,
0b01111111, 0b11111111, 0b01111111, 0b11111111,
PackBits_Repeat(12), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(76), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Repeat(32), 0b11111111, /*
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111,
0b11111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(1), 0b01111111,
PackBits_Repeat(3), 0b11111111, /*
0b01111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Literal(1), 0b01111111,
PackBits_Repeat(3), 0b11111111, /*
0b01111111, 0b11111111, 0b11111111, 0b11111111, */
PackBits_Repeat(12), 0b00000000, /*
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000,
0b00000000, 0b00000000, 0b00000000, 0b00000000, */
PackBits_Literal(29),
26, 'G', 'a', 'r', 'r', 'e', 't', 't', '\'', 's', ' ',
'W', 'o', 'r', 'k', 's', 'h', 'o', 'p', ' ',
'S', 'D', ' ', 'D', 'i', 's', 'k', 0
};
#endif