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// license:BSD-3-Clause
// copyright-holders:hap
/*

  Sharp SM5xx family handhelds.

*/

#ifndef MAME_INCLUDES_HH_SM510_H
#define MAME_INCLUDES_HH_SM510_H

#include "machine/timer.h"
#include "sound/spkrdev.h"


class hh_sm510_state : public driver_device
{
public:
	hh_sm510_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		m_maincpu(*this, "maincpu"),
		m_inp_matrix(*this, "IN.%u", 0),
		m_out_x(*this, "%u.%u.%u", 0U, 0U, 0U),
		m_speaker(*this, "speaker"),
		m_inp_lines(0),
		m_inp_fixed(-1),
		m_display_wait(33)
	{ }

	// devices
	required_device<cpu_device> m_maincpu;
	optional_ioport_array<8> m_inp_matrix; // max 8
	output_finder<16, 16, 4> m_out_x;
	optional_device<speaker_sound_device> m_speaker;

	// misc common
	u16 m_inp_mux;                  // multiplexed inputs mask
	int m_inp_lines;                // number of input mux columns
	int m_inp_fixed;                // input column fixed to GND/Vdd (-1 means none)
	u8 m_speaker_data;              // speaker output data(if more than 1 bit)
	u8 m_s;                         // MCU S output pins
	u8 m_r;                         // MCU R output pins

	u8 read_inputs(int columns, int fixed = -1);

	virtual void update_k_line();
	virtual DECLARE_INPUT_CHANGED_MEMBER(input_changed);
	virtual DECLARE_INPUT_CHANGED_MEMBER(acl_button);
	virtual DECLARE_WRITE16_MEMBER(sm510_lcd_segment_w);
	virtual DECLARE_WRITE8_MEMBER(sm500_lcd_segment_w);
	virtual DECLARE_READ8_MEMBER(input_r);
	virtual DECLARE_WRITE8_MEMBER(input_w);
	virtual DECLARE_WRITE8_MEMBER(piezo_r1_w);
	virtual DECLARE_WRITE8_MEMBER(piezo_r2_w);
	virtual DECLARE_WRITE8_MEMBER(piezo_input_w);
	virtual DECLARE_WRITE8_MEMBER(piezo2bit_r1_w);
	virtual DECLARE_WRITE8_MEMBER(piezo2bit_input_w);

	// display common
	int m_display_wait;             // lcd segment on/off-delay in milliseconds (default 33ms)
	u8 m_display_x_len;             // lcd number of groups
	u8 m_display_y_len;             // lcd number of segments
	u8 m_display_z_len;             // lcd number of commons
	u32 m_display_state[0x20];      // lcd segment data (max. 5-bit offset)
	u8 m_display_decay[0x20][0x20]; // (internal use)

	void set_display_size(u8 x, u8 y, u8 z);
	TIMER_DEVICE_CALLBACK_MEMBER(display_decay_tick);

protected:
	virtual void machine_start() override;
	virtual void machine_reset() override;
};


#endif // MAME_INCLUDES_HH_SM510_H