/*
Resets the drive geometry. This is required because the heuristic of
the default implementation sets the drive geometry to the geometry
of the medium.
*/
static void set_geometry(device_t *drive, floppy_type_t type)
{
if (drive!=NULL)
floppy_drive_set_geometry(drive, type);
else
logerror("ti99/FDC: Drive not found\n");
}
/* this is called on device init */
static void floppy_drive_init(device_t *img)
{
floppy_drive *pDrive = get_safe_token( img );
/* initialise flags */
pDrive->flags = 0;
pDrive->index_pulse_callback = NULL;
pDrive->ready_state_change_callback = NULL;
pDrive->index_timer = img->machine().scheduler().timer_alloc(FUNC(floppy_drive_index_callback), (void *) img);
pDrive->idx = 0;
floppy_drive_set_geometry(img, ((floppy_interface*)img->static_config())->floppy_type);
/* initialise id index - not so important */
pDrive->id_index = 0;
/* initialise track */
pDrive->current_track = 0;
/* default RPM */
pDrive->rpm = 300;
pDrive->controller = NULL;
pDrive->floppy_drive_type = FLOPPY_TYPE_REGULAR;
}
static MACHINE_INIT( exidy )
{
hd6402_init();
hd6402_set_callback(exidy_hd6402_callback);
hd6402_reset();
centronics_config(0, exidy_cent_config);
/* assumption: select is tied low */
centronics_write_handshake(0, CENTRONICS_SELECT | CENTRONICS_NO_RESET, CENTRONICS_SELECT| CENTRONICS_NO_RESET);
serial_timer = timer_alloc(exidy_serial_timer_callback);
cassette_timer = timer_alloc(exidy_cassette_timer_callback);
serial_connection_init(&cassette_serial_connection);
serial_connection_set_in_callback(&cassette_serial_connection, cassette_serial_in);
exidy_fe_port_w(0,0);
timer_set(TIME_NOW, 0, exidy_reset_timer_callback);
wd179x_init(WD_TYPE_179X,NULL);
floppy_drive_set_geometry(image_from_devtype_and_index(IO_FLOPPY, 0), FLOPPY_DRIVE_DS_80);
/* this is temporary. Normally when a Z80 is reset, it will
execute address 0. The exidy starts executing from 0x0e000 */
/* memory_set_opbase_handler(0, exidy_opbaseoverride); */
/* cpunum_write_byte(0,0,0x0c3); */
/* cpunum_write_byte(0,1,0x000); */
/* cpunum_write_byte(0,2,0x0e0); */
}
/* this is called on device init */
void legacy_floppy_image_device::floppy_drive_init()
{
/* initialise flags */
m_flags = 0;
m_index_pulse_callback = nullptr;
m_index_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(legacy_floppy_image_device::floppy_drive_index_callback),this));
m_idx = 0;
floppy_drive_set_geometry(m_config->floppy_type);
/* initialise id index - not so important */
m_id_index = 0;
/* initialise track */
m_current_track = 0;
/* default RPM */
m_rpm = 300;
m_controller = nullptr;
m_floppy_drive_type = FLOPPY_TYPE_REGULAR;
}