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// license: GPL-2.0+
// copyright-holders: Dirk Best
/***************************************************************************
Kontron PSI keyboard interface
This interface supports both a parallel and a serial keyboard
9 KEY.D0
8 KEY.D1
7 KEY.D2
6 KEY.D3
5 KEY.D4
4 KEY.D5
3 KEY.D6
2 KEY.D7
11 KEY.STRB
15 + KEY.TRANSM
16 - KEY.TRANSM
17 + KEY.REC
18 + KEY.REC
13 + 5V
14 GND
1 Shield
***************************************************************************/
#ifndef MAME_BUS_PSI_KBD_PSI_KBD_H
#define MAME_BUS_PSI_KBD_PSI_KBD_H
#pragma once
// supported devices
void psi_keyboard_devices(device_slot_interface &device);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class device_psi_keyboard_interface;
// ======================> psi_keyboard_bus_device
class psi_keyboard_bus_device : public device_t, public device_slot_interface
{
public:
// construction/destruction
psi_keyboard_bus_device(const machine_config &mconfig, const char *tag, device_t *owner, const char *dflt)
: psi_keyboard_bus_device(mconfig, tag, owner, (uint32_t)0)
{
option_reset();
psi_keyboard_devices(*this);
set_default_option(dflt);
set_fixed(false);
}
psi_keyboard_bus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual ~psi_keyboard_bus_device();
// callbacks
auto rx() { return m_rx_handler.bind(); }
auto key_strobe() { return m_key_strobe_handler.bind(); }
// called from keyboard
DECLARE_WRITE_LINE_MEMBER( rx_w ) { m_rx_handler(state); }
DECLARE_WRITE_LINE_MEMBER( key_strobe_w ) { m_key_strobe_handler(state); }
DECLARE_WRITE8_MEMBER( key_data_w ) { m_key_data = data; }
// called from host
DECLARE_WRITE_LINE_MEMBER( tx_w );
DECLARE_READ8_MEMBER( key_data_r ) { return m_key_data; }
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
private:
device_psi_keyboard_interface *m_kbd;
devcb_write_line m_rx_handler;
devcb_write_line m_key_strobe_handler;
uint8_t m_key_data;
};
// ======================> device_psi_keyboard_interface
class device_psi_keyboard_interface : public device_slot_card_interface
{
public:
// construction/destruction
virtual ~device_psi_keyboard_interface();
virtual void tx_w(int state) {};
protected:
device_psi_keyboard_interface(const machine_config &mconfig, device_t &device);
psi_keyboard_bus_device *m_host;
};
// device type definition
DECLARE_DEVICE_TYPE(PSI_KEYBOARD_INTERFACE, psi_keyboard_bus_device)
#endif // MAME_BUS_PSI_KBD_PSI_KBD_H
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