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// license:BSD-3-Clause
// copyright-holders: F. Ulivi
/*********************************************************************
hp80_io.h
I/O bus of HP80 systems
*********************************************************************/
#ifndef MAME_BUS_HP80_IO_HP80_IO_H
#define MAME_BUS_HP80_IO_HP80_IO_H
#pragma once
#define MCFG_HP80_IO_SLOT_ADD(_tag , _idx) \
MCFG_DEVICE_ADD(_tag, HP80_IO_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(hp80_io_slot_devices, nullptr, false) \
downcast<hp80_io_slot_device &>(*device).set_slot_no(_idx);
#define MCFG_HP80_IO_IRL_CB(_devcb) \
downcast<hp80_io_slot_device &>(*device).set_irl_cb_func(DEVCB_##_devcb);
#define MCFG_HP80_IO_HALT_CB(_devcb) \
downcast<hp80_io_slot_device &>(*device).set_halt_cb_func(DEVCB_##_devcb);
#define HP80_IO_FIRST_SC 3 // Lowest SC used by I/O cards
#define MCFG_HP80_IO_SC(_default_sc) \
PORT_START("SC") \
PORT_CONFNAME(0xf , (_default_sc) - HP80_IO_FIRST_SC , "Select Code") \
PORT_CONFSETTING(0 , "3")\
PORT_CONFSETTING(1 , "4")\
PORT_CONFSETTING(2 , "5")\
PORT_CONFSETTING(3 , "6")\
PORT_CONFSETTING(4 , "7")\
PORT_CONFSETTING(5 , "8")\
PORT_CONFSETTING(6 , "9")\
PORT_CONFSETTING(7 , "10")
class hp80_io_slot_device : public device_t,
public device_slot_interface
{
public:
// construction/destruction
hp80_io_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual ~hp80_io_slot_device();
// configuration helpers
void set_slot_no(unsigned slot_no) { m_slot_no = slot_no; }
// device-level overrides
virtual void device_start() override;
// Callback setups
template <class Object> devcb_base &set_irl_cb_func(Object &&cb) { return m_irl_cb_func.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_halt_cb_func(Object &&cb) { return m_halt_cb_func.set_callback(std::forward<Object>(cb)); }
// SC getter
uint8_t get_sc() const;
uint16_t get_base_addr() const;
void install_read_write_handlers(address_space& space);
DECLARE_WRITE_LINE_MEMBER(irl_w);
DECLARE_WRITE_LINE_MEMBER(halt_w);
void inten();
void clear_service();
private:
devcb_write8 m_irl_cb_func;
devcb_write8 m_halt_cb_func;
unsigned m_slot_no;
};
class hp80_io_card_device : public device_t,
public device_slot_card_interface
{
public:
// SC getter
uint8_t get_sc() const;
virtual void install_read_write_handlers(address_space& space , uint16_t base_addr) = 0;
virtual void inten();
virtual void clear_service();
protected:
// construction/destruction
hp80_io_card_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
virtual ~hp80_io_card_device();
required_ioport m_select_code_port;
// card device handling
DECLARE_WRITE_LINE_MEMBER(irl_w);
DECLARE_WRITE_LINE_MEMBER(halt_w);
};
// device type definition
DECLARE_DEVICE_TYPE(HP80_IO_SLOT, hp80_io_slot_device)
void hp80_io_slot_devices(device_slot_interface &device);
#endif // MAME_BUS_HP80_IO_HP80_IO_H
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