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/***************************************************************************

  ISA 8 bit IBM PC Music Feature Card

***************************************************************************/

#pragma once

#ifndef __ISA_IBM_MUSIC_FEATURE_CARD_H__
#define __ISA_IBM_MUSIC_FEATURE_CARD_H__


#include "emu.h"
#include "machine/isa.h"
#include "machine/i8255.h"
#include "machine/i8251.h"
#include "machine/pit8253.h"
#include "sound/2151intf.h"

//**************************************************************************
//  TYPE DEFINITIONS
//**************************************************************************

// ======================> isa8_ibm_mfc_device

class isa8_ibm_mfc_device :
		public device_t,
		public device_isa8_card_interface
{
public:

		// Construction/destruction
		isa8_ibm_mfc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);

		// Optional information overrides
		virtual machine_config_constructor  device_mconfig_additions() const;
		virtual ioport_constructor          device_input_ports() const;

		DECLARE_READ8_MEMBER( ppi0_i_a );
		DECLARE_WRITE8_MEMBER( ppi0_o_b );
		DECLARE_READ8_MEMBER( ppi0_i_c );
		DECLARE_WRITE8_MEMBER( ppi0_o_c );

		DECLARE_WRITE8_MEMBER( ppi1_o_a );
		DECLARE_READ8_MEMBER( ppi1_i_b );

		DECLARE_WRITE8_MEMBER( ppi1_o_c );

		DECLARE_READ8_MEMBER( ibm_mfc_r );
		DECLARE_WRITE8_MEMBER( ibm_mfc_w );

		DECLARE_READ_LINE_MEMBER( d70151_dsr_r );

		DECLARE_WRITE_LINE_MEMBER( d8253_clk0_out );
		DECLARE_WRITE_LINE_MEMBER( d8253_clk1_out );
		DECLARE_WRITE_LINE_MEMBER( d8253_clk2_out );

		DECLARE_WRITE_LINE_MEMBER( ibm_mfc_ym_irq );

		void                            set_z80_interrupt(int src, int state);

protected:

		// Device-level overrides
		virtual void                    device_start();
		virtual void                    device_reset();
		virtual void                    device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);

		virtual const rom_entry*        device_rom_region() const;

private:
		void                            set_pc_interrupt(int src, int state);
		void                            update_pc_interrupts(void);
		void                            update_z80_interrupts(void);

		UINT8                           m_tcr;
		UINT8                           m_pc_ppi_c;
		UINT8                           m_z80_ppi_c;

		UINT8                           m_pc_irq_state;
		UINT8                           m_z80_irq_state;

		emu_timer                       *m_serial_timer;

		required_device<cpu_device>     m_cpu;
		required_device<ym2151_device>  m_ym2151;
		required_device<pit8253_device> m_d8253;
		required_device<i8251_device>   m_d71051;
		required_device<i8255_device>   m_d71055c_0;
		required_device<i8255_device>   m_d71055c_1;
};


// Device type definition
extern const device_type ISA8_IBM_MFC;

#endif  /* __ISA_IBM_MUSIC_FEATURE_CARD_H__ */