// license:BSD-3-Clause
// copyright-holders:Carl
#ifndef MAME_BUS_ISA_DECTALK_H
#define MAME_BUS_ISA_DECTALK_H

#pragma once

#include "isa.h"

#include "cpu/i86/i186.h"
#include "cpu/tms320c1x/tms320c1x.h"
#include "sound/dac.h"


class dectalk_isa_device : public device_t,
						public device_isa8_card_interface
{
public:
	dectalk_isa_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// device-level overrides
	virtual void device_start() override ATTR_COLD;
	virtual void device_reset() override ATTR_COLD;

	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override ATTR_COLD;
	virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;

private:
	int bio_line_r();
	void clock_w(int state);

	void write(offs_t offset, uint8_t data);
	uint8_t read(offs_t offset);

	void status_w(uint16_t data);
	uint16_t cmd_r();
	void data_w(uint16_t data);
	uint16_t data_r();
	uint16_t host_irq_r();
	uint8_t dma_r();
	void dma_w(uint8_t data);
	void dac_w(uint16_t data);
	uint16_t dsp_dma_r();
	void dsp_dma_w(uint16_t data);
	void output_ctl_w(uint16_t data);
	void irq_line_w(uint16_t data);

	void dectalk_cpu_io(address_map &map) ATTR_COLD;
	void dectalk_cpu_map(address_map &map) ATTR_COLD;
	void dectalk_dsp_io(address_map &map) ATTR_COLD;
	void dectalk_dsp_map(address_map &map) ATTR_COLD;

	uint16_t m_cmd, m_stat, m_data, m_dsp_dma, m_ctl;
	uint8_t m_dma, m_vol, m_bio;

	required_device<i80186_cpu_device> m_cpu;
	required_device<dac_12bit_r2r_twos_complement_device> m_dac;
	required_device<tms320c15_device> m_dsp;
};

DECLARE_DEVICE_TYPE(ISA8_DECTALK, dectalk_isa_device)

#endif // MAME_BUS_ISA_DECTALK_H
