// license:BSD-3-Clause
// copyright-holders:Wilbert Pol, Miodrag Milanovic
/*****************************************************************************
*
* includes/pc.h
*
****************************************************************************/
#ifndef MAME_MACHINE_GENPC_H
#define MAME_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"
// ======================> 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
template <typename T> void set_cputag(T &&tag)
{
m_maincpu.set_tag(std::forward<T>(tag));
subdevice<isa8_device>("isa")->set_memspace(std::forward<T>(tag), AS_PROGRAM);
subdevice<isa8_device>("isa")->set_iospace(std::forward<T>(tag), AS_IO);
}
auto int_callback() { return m_int_callback.bind(); }
auto nmi_callback() { return m_nmi_callback.bind(); }
void map(address_map &map);
uint8_t m_pit_out2;
DECLARE_WRITE8_MEMBER(pc_page_w);
DECLARE_WRITE8_MEMBER(nmi_enable_w);
DECLARE_WRITE_LINE_MEMBER( pc_speaker_set_spkrdata );
DECLARE_WRITE_LINE_MEMBER( pc_pit8253_out1_changed );
virtual DECLARE_WRITE_LINE_MEMBER( pc_pit8253_out2_changed );
DECLARE_WRITE_LINE_MEMBER( pic_int_w );
protected:
ibm5160_mb_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_resolve_objects() override;
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
protected:
required_device<cpu_device> m_maincpu;
public:
required_device<pic8259_device> m_pic8259;
required_device<pit8253_device> m_pit8253;
required_device<am9517a_device> m_dma8237;
protected:
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;
devcb_write_line m_int_callback;
devcb_write_line m_nmi_callback;
/* 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;
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_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( iochck_w );
void pc_select_dma_channel(int channel, bool state);
};
// device type definition
DECLARE_DEVICE_TYPE(IBM5160_MOTHERBOARD, ibm5160_mb_device)
// ======================> 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);
DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
virtual DECLARE_WRITE_LINE_MEMBER( pc_pit8253_out2_changed ) override;
protected:
ibm5150_mb_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
private:
required_device<cassette_image_device> m_cassette;
DECLARE_READ8_MEMBER ( pc_ppi_porta_r );
DECLARE_READ8_MEMBER ( pc_ppi_portc_r );
DECLARE_WRITE8_MEMBER( pc_ppi_portb_w );
};
// device type definition
DECLARE_DEVICE_TYPE(IBM5150_MOTHERBOARD, ibm5150_mb_device)
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);
protected:
ec1841_mb_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
virtual void device_start() override;
private:
DECLARE_READ8_MEMBER ( pc_ppi_portc_r );
DECLARE_WRITE8_MEMBER( pc_ppi_portb_w );
DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w );
};
DECLARE_DEVICE_TYPE(EC1841_MOTHERBOARD, ec1841_mb_device)
class ec1840_mb_device : public ec1841_mb_device
{
public:
// construction/destruction
ec1840_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
virtual void device_start() override;
private:
DECLARE_READ8_MEMBER ( pc_ppi_portc_r );
DECLARE_WRITE8_MEMBER( pc_ppi_portb_w );
};
DECLARE_DEVICE_TYPE(EC1840_MOTHERBOARD, ec1840_mb_device)
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
void map(address_map &map);
protected:
pc_noppi_mb_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
};
DECLARE_DEVICE_TYPE(PCNOPPI_MOTHERBOARD, pc_noppi_mb_device)
#endif // MAME_MACHINE_GENPC_H