/*******************************************************************************
*
* Main Function
*
*******************************************************************************/
int main() {
// setting up everything
initialize();
/*************** Main Loop ***********************************/
while (1) {
if (_RD6 == 0) // If S3 button is pressed
{ // Need to display Seconds
PORTA = BinaryToBcd(Seconds); // PORTA = BCD value of Seconds
PortAToggleFlag = 1; // Toggle Flag to ON
}
else if (_RD7 == 0) // If S6 button is pressed
{ // Need to display HOurs
PORTA = BinaryToBcd(Hours); // PORTA = BCD value of Hours
PortAToggleFlag = 1; // Toggle Flag to ON
}
} // End of the infinite While loop
return 1;
}
/*******************************************************************************
*
* Interrupt Service Routine
*
*******************************************************************************/
void __attribute__ ((interrupt, no_auto_psv)) _T1Interrupt (void)
{ //
// Turn off flag //
IFS0bits.T1IF = 0; //
TMR1 = 0; // Clear TMR1
// Check if Seconds is equal to 59 //
if (Seconds >= TIME_SECONDS) //
{ //
// if so, check if minutes is equal to 59 also
if (Minutes >= TIME_MINUTES) //
{ //
// if so, increment Hours, Minutes = 0, and Seconds = 0
++Hours; //
Minutes = 0; //
Seconds = 0; //
} //
// if not, increment Minutes, and Seconds = 0
else //
{ //
++Minutes; //
Seconds = 0; //
} //
} //
// If not, Increment seconds //
else //
++Seconds; //
//
if ((_RD6 == 1) && (_RD7 == 1)) // Both buttons are not pressed
{ // Display Minutes with 1 s interval
// Decide whether to turn on PORTA or not based on PortAToggleFlag
// 1 = PORTA is on right now //
// 0 = PORTA is off right now //
if (PortAToggleFlag == 1) //PORTA is currently ON, lets turn it OFF
{ //
PORTA = 0; // Turn OFF PORTa
PortAToggleFlag = 0; // Toggle the flag to OFF
} //
else // PORTA is currently OFF, lets set it to Minutes
{ //
PORTA = BinaryToBcd(Minutes); // Set PORTA to the BCD value of minutes
PortAToggleFlag = 1; // Toggle the flag to ON
}
}
}
int32 CdromDriverLinux::cd_discinfo(memptr device, memptr buffer)
{
int drive, errorcode;
struct cdrom_tochdr tochdr;
struct cdrom_subchnl subchnl;
struct cdrom_tocentry tocentry;
atari_discinfo_t *discinfo;
drive = OpenDrive(device);
if (drive<0) {
return drive;
}
/* Read TOC header */
errorcode=cd_unixioctl(drive, CDROMREADTOCHDR, &tochdr);
if (errorcode<0) {
CloseDrive(drive);
return errorcode;
}
D(bug(NFCD_NAME "DiscInfo(): TOC header read"));
discinfo = (atari_discinfo_t *) Atari2HostAddr(buffer);
memset(discinfo, 0, sizeof(atari_discinfo_t));
discinfo->first = discinfo->current = tochdr.cdth_trk0;
discinfo->last = tochdr.cdth_trk1;
discinfo->index = 1;
/* Read subchannel */
subchnl.cdsc_format = CDROM_MSF;
errorcode=cd_unixioctl(drive, CDROMSUBCHNL, &subchnl);
if (errorcode<0) {
CloseDrive(drive);
return errorcode;
}
D(bug(NFCD_NAME "DiscInfo(): Subchannel read"));
discinfo->current = subchnl.cdsc_trk; /* current track */
discinfo->index = subchnl.cdsc_ind; /* current index */
discinfo->relative.track = 0;
discinfo->relative.minute = BinaryToBcd(subchnl.cdsc_reladdr.msf.minute);
discinfo->relative.second = BinaryToBcd(subchnl.cdsc_reladdr.msf.second);
discinfo->relative.frame = BinaryToBcd(subchnl.cdsc_reladdr.msf.frame);
discinfo->absolute.track = 0;
discinfo->absolute.minute = BinaryToBcd(subchnl.cdsc_absaddr.msf.minute);
discinfo->absolute.second = BinaryToBcd(subchnl.cdsc_absaddr.msf.second);
discinfo->absolute.frame = BinaryToBcd(subchnl.cdsc_absaddr.msf.frame);
/* Read toc entry for start of disc, to select disc type */
tocentry.cdte_track = tochdr.cdth_trk0;
tocentry.cdte_format = CDROM_MSF;
errorcode = cd_unixioctl(drive, CDROMREADTOCENTRY, &tocentry);
if (errorcode<0) {
CloseDrive(drive);
return errorcode;
}
discinfo->disctype = ((tocentry.cdte_ctrl & CDROM_DATA_TRACK) == CDROM_DATA_TRACK);
/* Read toc entry for end of disc */
tocentry.cdte_track = CDROM_LEADOUT;
tocentry.cdte_format = CDROM_MSF;
errorcode = cd_unixioctl(drive, CDROMREADTOCENTRY, &tocentry);
if (errorcode<0) {
CloseDrive(drive);
return errorcode;
}
D(bug(NFCD_NAME "DiscInfo(): Toc entry read"));
discinfo->end.track = 0;
discinfo->end.minute = BinaryToBcd(tocentry.cdte_addr.msf.minute);
discinfo->end.second = BinaryToBcd(tocentry.cdte_addr.msf.second);
discinfo->end.frame = BinaryToBcd(tocentry.cdte_addr.msf.frame);
D(bug(NFCD_NAME "DiscInfo(): first=%d, last=%d, current=%d, ind=%d, rel=%02x:%02x:%02x, abs=%02x:%02x:%02x, end=%02x:%02x:%02x",
discinfo->first, discinfo->last, discinfo->current, discinfo->index,
discinfo->relative.minute, discinfo->relative.second, discinfo->relative.frame,
discinfo->absolute.minute, discinfo->absolute.second, discinfo->absolute.frame,
discinfo->end.minute, discinfo->end.second, discinfo->end.frame));
CloseDrive(drive);
return TOS_E_OK;
}
int32 CdromDriverLinux::cd_gettoc(memptr device, uint32 dummy, memptr buffer)
{
UNUSED(dummy);
int drive, i, numtracks, errorcode;
struct cdrom_tochdr tochdr;
struct cdrom_tocentry tocentry;
atari_tocentry_t *atari_tocentry;
drive = OpenDrive(device);
if (drive<0) {
return drive;
}
/* Read TOC header */
errorcode=cd_unixioctl(drive, CDROMREADTOCHDR, &tochdr);
if (errorcode<0) {
CloseDrive(drive);
return errorcode;
}
D(bug(NFCD_NAME "GetToc(): TOC header read"));
numtracks = tochdr.cdth_trk1-tochdr.cdth_trk0+1;
/* Read TOC entries */
atari_tocentry = (atari_tocentry_t *) Atari2HostAddr(buffer);
for (i=0; i<=numtracks; i++) {
D(bug(NFCD_NAME "GetToc(): reading TOC entry for track %d", i));
tocentry.cdte_track = tochdr.cdth_trk0+i;
if (i == numtracks) {
tocentry.cdte_track = CDROM_LEADOUT;
}
tocentry.cdte_format = CDROM_MSF;
errorcode = cd_unixioctl(drive, CDROMREADTOCENTRY, &tocentry);
if (errorcode<0) {
CloseDrive(drive);
return errorcode;
}
atari_tocentry[i].track = tocentry.cdte_track;
atari_tocentry[i].minute = BinaryToBcd(tocentry.cdte_addr.msf.minute);
atari_tocentry[i].second = BinaryToBcd(tocentry.cdte_addr.msf.second);
atari_tocentry[i].frame = BinaryToBcd(tocentry.cdte_addr.msf.frame);
if (tocentry.cdte_track == CDROM_LEADOUT) {
atari_tocentry[i].track = CDROM_LEADOUT_CDAR;
}
D(bug(NFCD_NAME "GetToc(): track %d, id 0x%02x, %s",
i, tocentry.cdte_track,
tocentry.cdte_ctrl & CDROM_DATA_TRACK ? "data" : "audio"
));
if (tocentry.cdte_format == CDROM_MSF) {
D(bug(NFCD_NAME "GetToc(): msf %02d:%02d:%02d, bcd: %02x:%02x:%02x",
tocentry.cdte_addr.msf.minute,
tocentry.cdte_addr.msf.second,
tocentry.cdte_addr.msf.frame,
atari_tocentry[i].minute,
atari_tocentry[i].second,
atari_tocentry[i].frame
));
} else {
D(bug(NFCD_NAME "GetToc(): lba 0x%08x", tocentry.cdte_addr.lba));
}
}
atari_tocentry[numtracks+1].track =
atari_tocentry[numtracks+1].minute =
atari_tocentry[numtracks+1].second =
atari_tocentry[numtracks+1].frame = 0;
CloseDrive(drive);
return TOS_E_OK;
}