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// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
/***************************************************************************
a8sio.h - Atari 8 bit SIO bus interface
1 1
2 4 6 8 0 2
+-----------+
/ o o o o o o \
/ o o o o o o o \
+-----------------+
1 3 5 7 9 1 1
1 3
1 - clock in (to computer)
2 - clock out
3 - data in
4 - GND
5 - data out
6 - GND
7 - command (active low)
8 - motor
9 - proceed (active low)
10 - +5V/ready
11 - audio in
12 - +12V (A400/A800)
13 - interrupt (active low)
***************************************************************************/
#include "emu.h"
#include "a8sio.h"
#include "cassette.h"
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
const device_type A8SIO_SLOT = &device_creator<a8sio_slot_device>;
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// a8sio_slot_device - constructor
//-------------------------------------------------
a8sio_slot_device::a8sio_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, A8SIO_SLOT, "Atari 8 bit SIO Slot", tag, owner, clock, "a8sio_slot", __FILE__)
, device_slot_interface(mconfig, *this)
{
}
a8sio_slot_device::a8sio_slot_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) :
device_t(mconfig, type, name, tag, owner, clock, shortname, source),
device_slot_interface(mconfig, *this)
{
}
void a8sio_slot_device::static_set_a8sio_slot(device_t &device, const char *tag, const char *slottag)
{
a8sio_slot_device &a8sio_ext = dynamic_cast<a8sio_slot_device &>(device);
a8sio_ext.m_a8sio_tag = tag;
a8sio_ext.m_a8sio_slottag = slottag;
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void a8sio_slot_device::device_start()
{
device_a8sio_card_interface *dev = dynamic_cast<device_a8sio_card_interface *>(get_card_device());
if (dev)
{
device_a8sio_card_interface::static_set_a8sio_tag(*dev, m_a8sio_tag, m_a8sio_slottag);
}
}
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
const device_type A8SIO = &device_creator<a8sio_device>;
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// a8sio_device - constructor
//-------------------------------------------------
a8sio_device::a8sio_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, A8SIO, "Atari 8 biot SIO", tag, owner, clock, "a8sio", __FILE__)
, m_out_clock_in_cb(*this)
, m_out_data_in_cb(*this)
, m_out_audio_in_cb(*this)
{
}
a8sio_device::a8sio_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source)
: device_t(mconfig, type, name, tag, owner, clock, shortname, source)
, m_out_clock_in_cb(*this)
, m_out_data_in_cb(*this)
, m_out_audio_in_cb(*this)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void a8sio_device::device_start()
{
// resolve callbacks
m_out_clock_in_cb.resolve_safe();
m_out_data_in_cb.resolve_safe();
m_out_audio_in_cb.resolve_safe();
// clear slot
m_device = NULL;
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void a8sio_device::device_reset()
{
}
device_a8sio_card_interface *a8sio_device::get_a8sio_card()
{
return m_device;
}
void a8sio_device::add_a8sio_card(device_a8sio_card_interface *card)
{
m_device = card;
}
WRITE_LINE_MEMBER( a8sio_device::clock_in_w )
{
m_out_clock_in_cb(state);
}
WRITE_LINE_MEMBER( a8sio_device::data_in_w )
{
m_out_data_in_cb(state);
}
WRITE_LINE_MEMBER( a8sio_device::motor_w )
{
if (m_device)
{
m_device->motor_w(state);
}
}
WRITE8_MEMBER( a8sio_device::audio_in_w )
{
m_out_audio_in_cb(data);
}
//**************************************************************************
// DEVICE A8SIO CARD INTERFACE
//**************************************************************************
//-------------------------------------------------
// device_a8sio_card_interface - constructor
//-------------------------------------------------
device_a8sio_card_interface::device_a8sio_card_interface(const machine_config &mconfig, device_t &device)
: device_slot_card_interface(mconfig, device)
, m_a8sio(NULL)
, m_a8sio_tag(NULL)
{
}
//-------------------------------------------------
// ~device_a8sio_card_interface - destructor
//-------------------------------------------------
device_a8sio_card_interface::~device_a8sio_card_interface()
{
}
void device_a8sio_card_interface::static_set_a8sio_tag(device_t &device, const char *tag, const char *slottag)
{
device_a8sio_card_interface &a8sio_card = dynamic_cast<device_a8sio_card_interface &>(device);
a8sio_card.m_a8sio_tag = tag;
a8sio_card.m_a8sio_slottag = slottag;
}
void device_a8sio_card_interface::set_a8sio_device()
{
m_a8sio = dynamic_cast<a8sio_device *>(device().machine().device(m_a8sio_tag));
m_a8sio->add_a8sio_card(this);
}
WRITE_LINE_MEMBER( device_a8sio_card_interface::motor_w )
{
//printf("device_a8sio_card_interface::motor_w %d\n", state);
}
SLOT_INTERFACE_START(a8sio_cards)
SLOT_INTERFACE("cassette", A8SIO_CASSETTE)
SLOT_INTERFACE_END
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