// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#pragma once
#ifndef __NEXT__
#define __NEXT__
#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "machine/nscsi_bus.h"
#include "machine/mccs1850.h"
#include "machine/8530scc.h"
#include "machine/nextkbd.h"
#include "machine/upd765.h"
#include "machine/ncr5390.h"
#include "machine/mb8795.h"
#include "machine/nextmo.h"
#include "imagedev/chd_cd.h"
#include "imagedev/harddriv.h"
class next_state : public driver_device
{
public:
next_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
maincpu(*this, "maincpu"),
rtc(*this, "rtc"),
scc(*this, "scc"),
keyboard(*this, "keyboard"),
scsibus(*this, "scsibus"),
scsi(*this, "scsibus:7:ncr5390"),
net(*this, "net"),
mo(*this, "mo"),
fdc(*this, "fdc"),
vram(*this, "vram"),
m_maincpu(*this, "maincpu") { }
required_device<cpu_device> maincpu;
required_device<mccs1850_device> rtc;
required_device<scc8530_t> scc;
required_device<nextkbd_device> keyboard;
required_device<nscsi_bus_device> scsibus;
required_device<ncr5390_device> scsi;
required_device<mb8795_device> net;
required_device<nextmo_device> mo;
optional_device<n82077aa_device> fdc; // 040 only
UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void setup(UINT32 scr1, int size_x, int size_y, int skip, bool color);
DECLARE_READ8_MEMBER( io_r );
DECLARE_WRITE8_MEMBER( io_w );
DECLARE_READ32_MEMBER( rom_map_r );
DECLARE_READ32_MEMBER( scr2_r );
DECLARE_WRITE32_MEMBER( scr2_w );
DECLARE_READ32_MEMBER( scr1_r );
DECLARE_READ32_MEMBER( irq_status_r );
DECLARE_READ32_MEMBER( irq_mask_r );
DECLARE_WRITE32_MEMBER( irq_mask_w );
DECLARE_READ32_MEMBER( event_counter_r );
DECLARE_READ32_MEMBER( dsp_r );
DECLARE_READ32_MEMBER( fdc_control_r );
DECLARE_WRITE32_MEMBER( fdc_control_w );
DECLARE_READ32_MEMBER( dma_ctrl_r );
DECLARE_WRITE32_MEMBER( dma_ctrl_w );
DECLARE_READ32_MEMBER( dma_regs_r );
DECLARE_WRITE32_MEMBER( dma_regs_w );
DECLARE_READ32_MEMBER( scsictrl_r );
DECLARE_WRITE32_MEMBER( scsictrl_w );
DECLARE_READ32_MEMBER( phy_r );
DECLARE_WRITE32_MEMBER( phy_w );
DECLARE_READ32_MEMBER( timer_data_r );
DECLARE_WRITE32_MEMBER( timer_data_w );
DECLARE_READ32_MEMBER( timer_ctrl_r );
DECLARE_WRITE32_MEMBER( timer_ctrl_w );
DECLARE_WRITE8_MEMBER( ramdac_w );
UINT32 scr1;
UINT32 scr2;
UINT32 irq_status;
UINT32 irq_mask;
int irq_level;
required_shared_ptr<UINT32> vram;
UINT8 scsictrl, scsistat;
UINT32 phy[2];
attotime timer_tbase;
UINT16 timer_vbase;
UINT32 timer_data, timer_next_data;
UINT32 timer_ctrl;
emu_timer *timer_tm;
UINT32 eventc_latch;
DECLARE_WRITE_LINE_MEMBER(scc_irq);
DECLARE_WRITE_LINE_MEMBER(keyboard_irq);
DECLARE_WRITE_LINE_MEMBER(power_irq);
DECLARE_WRITE_LINE_MEMBER(nmi_irq);
DECLARE_WRITE_LINE_MEMBER(scsi_irq);
DECLARE_WRITE_LINE_MEMBER(scsi_drq);
DECLARE_WRITE_LINE_MEMBER(fdc_irq);
DECLARE_WRITE_LINE_MEMBER(fdc_drq);
DECLARE_WRITE_LINE_MEMBER(net_tx_irq);
DECLARE_WRITE_LINE_MEMBER(net_rx_irq);
DECLARE_WRITE_LINE_MEMBER(net_tx_drq);
DECLARE_WRITE_LINE_MEMBER(net_rx_drq);
DECLARE_WRITE_LINE_MEMBER(mo_irq);
DECLARE_WRITE_LINE_MEMBER(mo_drq);
DECLARE_FLOPPY_FORMATS( floppy_formats );
void vblank_w(screen_device &screen, bool vblank_state);
protected:
struct dma_slot {
UINT32 start, limit, chain_start, chain_limit, current;
UINT8 state;
bool supdate, restart, drq;
};
enum {
// write bits
DMA_SETENABLE = 0x01,
DMA_SETSUPDATE = 0x02,
DMA_SETREAD = 0x04,
DMA_CLRCOMPLETE = 0x08,
DMA_RESET = 0x10,
DMA_INITBUF = 0x20,
DMA_INITBUFTURBO = 0x40,
// read bits
DMA_ENABLE = 0x01,
DMA_SUPDATE = 0x02,
DMA_READ = 0x04,
DMA_COMPLETE = 0x08,
DMA_BUSEXC = 0x10
};
static const char *dma_targets[0x20];
static const int dma_irqs[0x20];
static const bool dma_has_saved[0x20];
static const int scsi_clocks[4];
dma_slot dma_slots[0x20];
UINT32 esp;
int screen_sx, screen_sy, screen_skip;
bool screen_color;
bool vbl_enabled;
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
void timer_start();
void timer_update();
void irq_set(int id, bool raise);
void irq_check();
const char *dma_name(int slot);
void dma_do_ctrl_w(int slot, UINT8 data);
void dma_drq_w(int slot, bool state);
void dma_read(int slot, UINT8 &val, bool &eof, bool &err);
void dma_write(int slot, UINT8 val, bool eof, bool &err);
void dma_check_update(int slot);
void dma_check_end(int slot, bool eof);
void dma_end(int slot);
public:
DECLARE_DRIVER_INIT(nexts2);
DECLARE_DRIVER_INIT(next);
DECLARE_DRIVER_INIT(nextsc);
DECLARE_DRIVER_INIT(nextst);
DECLARE_DRIVER_INIT(nextct);
DECLARE_DRIVER_INIT(nextstc);
DECLARE_DRIVER_INIT(nextctc);
DECLARE_DRIVER_INIT(nexts);
required_device<cpu_device> m_maincpu;
};
#endif