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// license:BSD-3-Clause
// copyright-holders:Vas Crabb
#ifndef MAME_MACHINE_KEYBOARD_H
#define MAME_MACHINE_KEYBOARD_H
#pragma once
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define KEYBOARDCB_PUT(cls, fnc) generic_keyboard_device::output_delegate((&cls::fnc), (#cls "::" #fnc), DEVICE_SELF, ((cls *)nullptr))
#define KEYBOARDCB_DEVPUT(tag, cls, fnc) generic_keyboard_device::output_delegate((&cls::fnc), (#cls "::" #fnc), (tag), ((cls *)nullptr))
#define MCFG_GENERIC_KEYBOARD_CB(cb) \
downcast<generic_keyboard_device &>(*device).set_keyboard_callback((KEYBOARDCB_##cb));
/***************************************************************************
DEVICE TYPE GLOBALS
***************************************************************************/
DECLARE_DEVICE_TYPE(GENERIC_KEYBOARD, generic_keyboard_device)
/***************************************************************************
REUSABLE I/O PORTS
***************************************************************************/
INPUT_PORTS_EXTERN( generic_keyboard );
/***************************************************************************
TYPE DECLARATIONS
***************************************************************************/
template <uint8_t ROW_COUNT>
class device_matrix_keyboard_interface : public device_interface
{
protected:
template <typename... T>
device_matrix_keyboard_interface(machine_config const &mconfig, device_t &device, T &&... tags);
virtual void interface_pre_start() override;
virtual void interface_post_start() override;
void start_processing(const attotime &period);
void stop_processing();
void reset_key_state();
void typematic_start(u8 row, u8 column, attotime const &delay, attotime const &interval);
void typematic_restart(attotime const &delay, attotime const &interval);
void typematic_stop();
bool typematic_is(u8 row, u8 column) const { return (m_typematic_row == row) && (m_typematic_column == column); }
virtual void key_make(u8 row, u8 column) = 0;
virtual void key_repeat(u8 row, u8 column);
virtual void key_break(u8 row, u8 column);
virtual void will_scan_row(u8 row);
bool are_all_keys_up();
private:
TIMER_CALLBACK_MEMBER(scan_row);
TIMER_CALLBACK_MEMBER(typematic);
emu_timer *m_scan_timer;
emu_timer *m_typematic_timer;
required_ioport m_key_rows[ROW_COUNT];
ioport_value m_key_states[ROW_COUNT];
u8 m_next_row;
u8 m_processing;
u8 m_typematic_row;
u8 m_typematic_column;
};
class generic_keyboard_device : public device_t, protected device_matrix_keyboard_interface<4U>
{
public:
typedef device_delegate<void (u8 character)> output_delegate;
generic_keyboard_device(
const machine_config &mconfig,
const char *tag,
device_t *owner,
u32 clock);
template <class Object> void set_keyboard_callback(Object &&cb) { m_keyboard_cb = std::forward<Object>(cb); }
virtual ioport_constructor device_input_ports() const override;
protected:
generic_keyboard_device(
const machine_config &mconfig,
device_type type,
char const *tag,
device_t *owner,
u32 clock);
virtual void device_start() override;
virtual void device_reset() override;
virtual void key_make(u8 row, u8 column) override;
virtual void key_repeat(u8 row, u8 column) override;
virtual void send_key(u8 code);
virtual bool translate(u8 code, u8 &translated) const;
required_ioport m_config;
required_ioport m_modifiers;
private:
virtual void will_scan_row(u8 row) override;
void typematic();
void send_translated(u8 code);
attotime typematic_delay() const;
attotime typematic_period() const;
u16 m_last_modifiers;
output_delegate m_keyboard_cb;
};
#endif // MAME_MACHINE_KEYBOARD_H
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