/*
* This routine is called when everything should be correctly set up
* for the transfer (ie floppy motor is on and the correct floppy is
* selected).
*/
static void transfer(void) {
read_track = (command == FD_READ) && (CURRENT_ERRORS < 4) &&
(floppy->sect <= MAX_BUFFER_SECTORS);
configure_fdc_mode();
if (reset) {
redo_fd_request();
return;
}
if (!seek) {
setup_rw_floppy();
return;
}
do_floppy = seek_interrupt;
output_byte(FD_SEEK);
if (read_track)
output_byte(current_drive);
else
output_byte((head<<2) | current_drive);
output_byte(seek_track);
if (reset)
redo_fd_request();
}
/*
* Must do 4 FD_SENSEIs after reset because of ``drive polling''.
*/
static void reset_interrupt(void)
{
short i;
for (i=0; i<4; i++) {
output_byte(FD_SENSEI);
(void) result();
}
output_byte(FD_SPECIFY);
output_byte(cur_spec1); /* hut etc */
output_byte(6); /* Head load time =6ms, DMA */
configure_fdc_mode(); /* reprogram fdc */
if (initial_reset_flag) {
initial_reset_flag = 0;
recalibrate = 1;
reset = 0;
return;
}
if (!recover)
redo_fd_request();
else {
recalibrate_floppy();
recover = 0;
}
}
