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