// license:BSD-3-Clause
// copyright-holders:Wilbert Pol, Miodrag Milanovic
/*****************************************************************************
*
* includes/pc.h
*
****************************************************************************/
#ifndef MAME_DEVICES_MACHINE_GENPC_H
#define MAME_DEVICES_MACHINE_GENPC_H
#include "imagedev/cassette.h"
#include "machine/am9517a.h"
#include "machine/i8255.h"
#include "machine/ins8250.h"
#include "machine/pic8259.h"
#include "machine/pit8253.h"
#include "machine/ram.h"
#include "sound/spkrdev.h"
#include "bus/isa/isa.h"
#include "bus/isa/isa_cards.h"
#include "bus/pc_kbd/pc_kbdc.h"
#define MCFG_IBM5160_MOTHERBOARD_ADD(_tag, _cputag) \
MCFG_DEVICE_ADD(_tag, IBM5160_MOTHERBOARD, 0) \
ibm5160_mb_device::static_set_cputag(*device, _cputag);
// ======================> ibm5160_mb_device
class ibm5160_mb_device : public device_t
{
public:
// construction/destruction
ibm5160_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// inline configuration
static void static_set_cputag(device_t &device, const char *tag);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const override;
virtual ioport_constructor device_input_ports() const override;
DECLARE_ADDRESS_MAP(map, 8);
protected:
ibm5160_mb_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, uint32_t clock, const char *shortname, const char *source);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
public:
required_device<cpu_device> m_maincpu;
required_device<pic8259_device> m_pic8259;
required_device<am9517a_device> m_dma8237;
required_device<pit8253_device> m_pit8253;
optional_device<i8255_device> m_ppi8255;
required_device<speaker_sound_device> m_speaker;
required_device<isa8_device> m_isabus;
optional_device<pc_kbdc_device> m_pc_kbdc;
required_device<ram_device> m_ram;
/* U73 is an LS74 - dual flip flop */
/* Q2 is set by OUT1 from the 8253 and goes to DRQ1 on the 8237 */
uint8_t m_u73_q2;
uint8_t m_out1;
int m_dma_channel;
uint8_t m_dma_offset[4];
uint8_t m_pc_spkrdata;
uint8_t m_pit_out2;
bool m_cur_eop;
uint8_t m_nmi_enabled;
int m_ppi_portc_switch_high;
int m_ppi_speaker;
int m_ppi_keyboard_clear;
uint8_t m_ppi_keyb_clock;
uint8_t m_ppi_portb;
uint8_t m_ppi_clock_signal;
uint8_t m_ppi_data_signal;
uint8_t m_ppi_shift_register;
uint8_t m_ppi_shift_enable;
// interface to the keyboard
DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
DECLARE_WRITE_LINE_MEMBER( keyboard_data_w );
DECLARE_READ8_MEMBER ( pc_ppi_porta_r );
DECLARE_READ8_MEMBER ( pc_ppi_portc_r );
DECLARE_WRITE8_MEMBER( pc_ppi_portb_w );
DECLARE_WRITE_LINE_MEMBER( pc_pit8253_out1_changed );
DECLARE_WRITE_LINE_MEMBER( pc_pit8253_out2_changed );
DECLARE_WRITE_LINE_MEMBER( pc_dma_hrq_changed );
DECLARE_WRITE_LINE_MEMBER( pc_dma8237_out_eop );
DECLARE_READ8_MEMBER( pc_dma_read_byte );
DECLARE_WRITE8_MEMBER( pc_dma_write_byte );
DECLARE_READ8_MEMBER( pc_dma8237_1_dack_r );
DECLARE_READ8_MEMBER( pc_dma8237_2_dack_r );
DECLARE_READ8_MEMBER( pc_dma8237_3_dack_r );
DECLARE_WRITE8_MEMBER( pc_dma8237_1_dack_w );
DECLARE_WRITE8_MEMBER( pc_dma8237_2_dack_w );
DECLARE_WRITE8_MEMBER( pc_dma8237_3_dack_w );
DECLARE_WRITE8_MEMBER( pc_dma8237_0_dack_w );
DECLARE_WRITE_LINE_MEMBER( pc_dack0_w );
DECLARE_WRITE_LINE_MEMBER( pc_dack1_w );
DECLARE_WRITE_LINE_MEMBER( pc_dack2_w );
DECLARE_WRITE_LINE_MEMBER( pc_dack3_w );
DECLARE_WRITE_LINE_MEMBER( pc_speaker_set_spkrdata );
DECLARE_WRITE8_MEMBER(pc_page_w);
DECLARE_WRITE8_MEMBER(nmi_enable_w);
const char *m_cputag;
private:
void pc_select_dma_channel(int channel, bool state);
};
// device type definition
extern const device_type IBM5160_MOTHERBOARD;
#define MCFG_IBM5150_MOTHERBOARD_ADD(_tag, _cputag) \
MCFG_DEVICE_ADD(_tag, IBM5150_MOTHERBOARD, 0) \
ibm5150_mb_device::static_set_cputag(*device, _cputag);
// ======================> ibm5150_mb_device
class ibm5150_mb_device : public ibm5160_mb_device
{
public:
// construction/destruction
ibm5150_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const override;
DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
protected:
ibm5150_mb_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, uint32_t clock, const char *shortname, const char *source);
// device-level overrides
required_device<cassette_image_device> m_cassette;
public:
DECLARE_READ8_MEMBER ( pc_ppi_porta_r );
DECLARE_READ8_MEMBER ( pc_ppi_portc_r );
DECLARE_WRITE8_MEMBER( pc_ppi_portb_w );
};
// device type definition
extern const device_type IBM5150_MOTHERBOARD;
#define MCFG_EC1841_MOTHERBOARD_ADD(_tag, _cputag) \
MCFG_DEVICE_ADD(_tag, EC1841_MOTHERBOARD, 0) \
ec1841_mb_device::static_set_cputag(*device, _cputag);
class ec1841_mb_device : public ibm5160_mb_device
{
public:
// construction/destruction
ec1841_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const override;
virtual ioport_constructor device_input_ports() const override;
virtual void device_start() override;
public:
DECLARE_READ8_MEMBER ( pc_ppi_portc_r );
DECLARE_WRITE8_MEMBER( pc_ppi_portb_w );
DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
};
extern const device_type EC1841_MOTHERBOARD;
#define MCFG_PCNOPPI_MOTHERBOARD_ADD(_tag, _cputag) \
MCFG_DEVICE_ADD(_tag, PCNOPPI_MOTHERBOARD, 0) \
pc_noppi_mb_device::static_set_cputag(*device, _cputag);
class pc_noppi_mb_device : public ibm5160_mb_device
{
public:
// construction/destruction
pc_noppi_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
uint8_t pit_out2() { return m_pit_out2; } // helper for near-clones with multifunction ics instead of 8255s
DECLARE_ADDRESS_MAP(map, 8);
protected:
pc_noppi_mb_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, uint32_t clock, const char *shortname, const char *source);
virtual machine_config_constructor device_mconfig_additions() const override;
virtual ioport_constructor device_input_ports() const override;
};
extern const device_type PCNOPPI_MOTHERBOARD;
#endif // MAME_DEVICES_MACHINE_GENPC_H