mirror of
https://github.com/holub/mame
synced 2025-04-16 13:34:55 +03:00
fmtowns: add devices for the SCSI card slot and the FMT-121 card (#7306)
* fmtowns: add a SCSI card slot for the original models - Add a slot device for the Model 1/2 dedicated SCSI slot - Add a device for the FMT-121 SCSI Card - Modify the I/O maps and machine configurations so the slot and the integrated controller don't overlap
This commit is contained in:
r09
GitHub
parent
c552c38ac6
commit
dd73e03c08
@ -1115,6 +1115,20 @@ if (BUSES["EP64"]~=null) then
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end
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---------------------------------------------------
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--
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--@src/devices/bus/fmt_scsi/fmt_scsi.h,BUSES["FMT_SCSI"] = true
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---------------------------------------------------
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if (BUSES["FMT_SCSI"]~=null) then
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files {
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MAME_DIR .. "src/devices/bus/fmt_scsi/fmt_scsi.cpp",
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MAME_DIR .. "src/devices/bus/fmt_scsi/fmt_scsi.h",
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MAME_DIR .. "src/devices/bus/fmt_scsi/fmt121.cpp",
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MAME_DIR .. "src/devices/bus/fmt_scsi/fmt121.h",
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}
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end
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---------------------------------------------------
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--
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--@src/devices/bus/gamate/slot.h,BUSES["GAMATE"] = true
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@ -841,6 +841,7 @@ BUSES["ELECTRON"] = true
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BUSES["ELECTRON_CART"] = true
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BUSES["EP64"] = true
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BUSES["EPSON_SIO"] = true
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BUSES["FMT_SCSI"] = true
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BUSES["GAMATE"] = true
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BUSES["GAMEBOY"] = true
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BUSES["GAMEGEAR"] = true
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150
src/devices/bus/fmt_scsi/fmt121.cpp
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150
src/devices/bus/fmt_scsi/fmt121.cpp
Normal file
@ -0,0 +1,150 @@
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// license:BSD-3-Clause
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// copyright-holders:r09
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/****************************************************************************
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Fujitsu FMT-121 SCSI Card
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An expansion card for the dedicated SCSI card slot on the FM Towns
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Model 1 and 2 computers. It contains a Fujitsu MB673522U SCSI controller
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and an external 50-pin Centronics connector.
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|||||||||||||||||||||
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+-------------------------| |-------------------------+
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| CN1 +-------------------+ |
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| |
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| 74LS04N |
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| 74LS14N 74LS240N SN74LS06N |
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| MB413 |
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| MB463 |
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| 74AS00N |
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| +-----------+ |
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| MB463 | | |
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| | MB673522U | MB412 |
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| +-----------+ |
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| MB463 74LS240N |
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| CN3 |
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| .......................................... |
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| . . |
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| .......................................... |
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| CN2 |
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| +----------------------------------------+ |
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| | | |
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+--------------| |---------------+
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||||||||||||||||||||||||||||||||||||||||||
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CN1: 30-pin MFC-30LFD DIP connector
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CN2: 50-pin Centronics connector
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CN3: solder pads for internal 50-pin connector (not present)
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****************************************************************************/
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#include "emu.h"
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#include "fmt121.h"
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#include "bus/scsi/scsi.h"
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#include "bus/scsi/scsihd.h"
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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// device type definition
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DEFINE_DEVICE_TYPE(FMT121, fmt121_device, "fmt121", "FMT-121 SCSI Card")
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//**************************************************************************
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// DEVICE DEFINITION
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//**************************************************************************
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//-------------------------------------------------
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// fmt121_device - construction
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//-------------------------------------------------
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fmt121_device::fmt121_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
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: device_t(mconfig, FMT121, tag, owner, clock)
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, fmt_scsi_card_interface(mconfig, *this)
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, m_scsi_ctlr(*this, "fmscsi")
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{
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}
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//-------------------------------------------------
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// device_add_mconfig - add device-specific
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// machine configuration
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//-------------------------------------------------
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void fmt121_device::device_add_mconfig(machine_config &config)
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{
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scsi_port_device &scsi(SCSI_PORT(config, "scsi", 0));
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scsi.set_slot_device(1, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_0));
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scsi.set_slot_device(2, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_1));
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scsi.set_slot_device(3, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_2));
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scsi.set_slot_device(4, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_3));
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scsi.set_slot_device(5, "harddisk", SCSIHD, DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_4));
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FMSCSI(config, m_scsi_ctlr, 0);
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m_scsi_ctlr->set_scsi_port("scsi");
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m_scsi_ctlr->irq_handler().set(FUNC(fmt121_device::irq_w));
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m_scsi_ctlr->drq_handler().set(FUNC(fmt121_device::drq_w));
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void fmt121_device::device_start()
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{
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}
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//**************************************************************************
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// FMT121 INTERFACE
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//**************************************************************************
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//-------------------------------------------------
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// fmt_scsi_read - I/O read access
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//-------------------------------------------------
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u8 fmt121_device::fmt_scsi_read(offs_t offset)
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{
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return m_scsi_ctlr->fmscsi_r(offset);
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}
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//-------------------------------------------------
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// fmt_scsi_write - I/O write access
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//-------------------------------------------------
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void fmt121_device::fmt_scsi_write(offs_t offset, u8 data)
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{
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m_scsi_ctlr->fmscsi_w(offset, data);
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}
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//-------------------------------------------------
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// fmt_scsi_data_read - data read access
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//-------------------------------------------------
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u8 fmt121_device::fmt_scsi_data_read()
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{
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return m_scsi_ctlr->fmscsi_data_r();
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}
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//-------------------------------------------------
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// fmt_scsi_data_write - data write access
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//-------------------------------------------------
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void fmt121_device::fmt_scsi_data_write(u8 data)
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{
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m_scsi_ctlr->fmscsi_data_w(data);
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}
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void fmt121_device::irq_w(int state)
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{
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m_slot->irq_w(state);
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}
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void fmt121_device::drq_w(int state)
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{
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m_slot->drq_w(state);
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}
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50
src/devices/bus/fmt_scsi/fmt121.h
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50
src/devices/bus/fmt_scsi/fmt121.h
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@ -0,0 +1,50 @@
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// license:BSD-3-Clause
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// copyright-holders:r09
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#ifndef MAME_BUS_FMT_SCSI_FMT121_H
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#define MAME_BUS_FMT_SCSI_FMT121_H
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#pragma once
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#include "fmt_scsi.h"
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#include "machine/fm_scsi.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> fmt121_device
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class fmt121_device : public device_t, public fmt_scsi_card_interface
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{
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public:
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// device type constructor
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fmt121_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
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protected:
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// device-level overrides
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virtual void device_add_mconfig(machine_config &config) override;
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virtual void device_start() override;
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// fmt_scsi_card_interface overrides
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virtual u8 fmt_scsi_read(offs_t offset) override;
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virtual void fmt_scsi_write(offs_t offset, u8 data) override;
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virtual u8 fmt_scsi_data_read(void) override;
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virtual void fmt_scsi_data_write(u8 data) override;
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private:
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required_device<fmscsi_device> m_scsi_ctlr;
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void irq_w(int state);
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void drq_w(int state);
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};
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// device type declaration
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DECLARE_DEVICE_TYPE(FMT121, fmt121_device)
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#endif // MAME_BUS_FMT_SCSI_FMT121_H
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158
src/devices/bus/fmt_scsi/fmt_scsi.cpp
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158
src/devices/bus/fmt_scsi/fmt_scsi.cpp
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@ -0,0 +1,158 @@
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// license:BSD-3-Clause
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// copyright-holders:r09
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/****************************************************************************
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Fujitsu FM Towns SCSI card slot
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This is a dedicated 30-pin slot for the FMT-121 SCSI Card. It is only
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present on the Model 1 and 2; all later models integrate the SCSI
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controller directly on the motherboard.
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****************************************************************************/
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#include "emu.h"
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#include "fmt_scsi.h"
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#include "fmt121.h"
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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// device type definition
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DEFINE_DEVICE_TYPE(FMT_SCSI_SLOT, fmt_scsi_slot_device, "fmt_scsi_slot", "FM Towns SCSI card slot")
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//**************************************************************************
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// FMT_SCSI SLOT DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// fmt_scsi_slot_device - construction
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//-------------------------------------------------
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fmt_scsi_slot_device::fmt_scsi_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
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: device_t(mconfig, FMT_SCSI_SLOT, tag, owner, clock)
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, device_single_card_slot_interface<fmt_scsi_card_interface>(mconfig, *this)
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, m_card(nullptr)
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, m_irq_handler(*this)
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, m_drq_handler(*this)
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{
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}
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//-------------------------------------------------
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// device_resolve_objects - resolve objects that
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// may be needed for other devices to set
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// initial conditions at start time
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//-------------------------------------------------
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void fmt_scsi_slot_device::device_resolve_objects()
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{
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m_card = get_card_device();
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if (m_card != nullptr)
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m_card->m_slot = this;
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void fmt_scsi_slot_device::device_start()
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{
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m_irq_handler.resolve_safe();
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m_drq_handler.resolve_safe();
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}
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//-------------------------------------------------
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// read - I/O read access
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//-------------------------------------------------
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u8 fmt_scsi_slot_device::read(address_space &space, offs_t offset)
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{
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if (m_card)
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return m_card->fmt_scsi_read(offset);
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else
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return space.unmap();
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}
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//-------------------------------------------------
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// write - I/O write access
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//-------------------------------------------------
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void fmt_scsi_slot_device::write(offs_t offset, u8 data)
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{
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if (m_card)
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m_card->fmt_scsi_write(offset, data);
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}
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//-------------------------------------------------
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// data_read - data read access
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//-------------------------------------------------
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u8 fmt_scsi_slot_device::data_read()
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{
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if (m_card)
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return m_card->fmt_scsi_data_read();
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else
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return 0;
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}
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//-------------------------------------------------
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// data_write - data write access
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//-------------------------------------------------
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void fmt_scsi_slot_device::data_write(u8 data)
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{
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if (m_card)
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m_card->fmt_scsi_data_write(data);
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}
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void fmt_scsi_slot_device::irq_w(int state)
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{
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m_irq_handler(state);
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}
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void fmt_scsi_slot_device::drq_w(int state)
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{
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m_drq_handler(state);
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}
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//**************************************************************************
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// FMT_SCSI CARD INTERFACE
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//**************************************************************************
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//-------------------------------------------------
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// fmt_scsi_card_interface - construction
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//-------------------------------------------------
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fmt_scsi_card_interface::fmt_scsi_card_interface(const machine_config &mconfig, device_t &device)
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: device_interface(device, "fmtscsicard")
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, m_slot(nullptr)
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{
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}
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//-------------------------------------------------
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// interface_pre_start - called before the
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// device's own start function
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//-------------------------------------------------
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void fmt_scsi_card_interface::interface_pre_start()
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{
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if (!m_slot)
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throw device_missing_dependencies();
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}
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//-------------------------------------------------
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// fmt_scsi_default_devices - add standard options
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// for main slots
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//-------------------------------------------------
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void fmt_scsi_default_devices(device_slot_interface &device)
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{
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device.option_add("fmt121", FMT121);
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}
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98
src/devices/bus/fmt_scsi/fmt_scsi.h
Normal file
98
src/devices/bus/fmt_scsi/fmt_scsi.h
Normal file
@ -0,0 +1,98 @@
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// license:BSD-3-Clause
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// copyright-holders:r09
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/**********************************************************************
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Fujitsu FM Towns SCSI card slot
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**********************************************************************/
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#ifndef MAME_BUS_FMT_SCSI_FMT_SCSI_H
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#define MAME_BUS_FMT_SCSI_FMT_SCSI_H
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#pragma once
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// forward declarations
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class fmt_scsi_card_interface;
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// ======================> fmt_scsi_slot_device
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class fmt_scsi_slot_device : public device_t, public device_single_card_slot_interface<fmt_scsi_card_interface>
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{
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friend class fmt_scsi_card_interface;
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public:
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// construction/destruction
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template <typename T>
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fmt_scsi_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt)
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: fmt_scsi_slot_device(mconfig, tag, owner, 0)
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{
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option_reset();
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opts(*this);
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set_default_option(dflt);
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set_fixed(false);
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}
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fmt_scsi_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
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auto irq_handler() { return m_irq_handler.bind(); }
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auto drq_handler() { return m_drq_handler.bind(); }
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u8 read(address_space &space, offs_t offset);
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void write(offs_t offset, u8 data);
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uint8_t data_read(void);
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void data_write(uint8_t data);
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void irq_w(int state);
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void drq_w(int state);
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protected:
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// device-specific overrides
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virtual void device_resolve_objects() override;
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virtual void device_start() override;
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private:
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fmt_scsi_card_interface *m_card;
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devcb_write_line m_irq_handler;
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devcb_write_line m_drq_handler;
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};
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// ======================> fmt_scsi_card_interface
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class fmt_scsi_card_interface : public device_interface
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{
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friend class fmt_scsi_slot_device;
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protected:
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// construction/destruction
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fmt_scsi_card_interface(const machine_config &mconfig, device_t &device);
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// required overrides
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virtual u8 fmt_scsi_read(offs_t offset) = 0;
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virtual void fmt_scsi_write(offs_t offset, u8 data) = 0;
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virtual u8 fmt_scsi_data_read(void) = 0;
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virtual void fmt_scsi_data_write(u8 data) = 0;
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fmt_scsi_slot_device *m_slot;
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private:
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virtual void interface_pre_start() override;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(FMT_SCSI_SLOT, fmt_scsi_slot_device)
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void fmt_scsi_default_devices(device_slot_interface &device);
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#endif // MAME_BUS_FMT_SCSI_FMT_SCSI_H
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@ -2012,16 +2012,6 @@ WRITE_LINE_MEMBER(towns_state::rtc_busy_w)
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}
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// SCSI controller - I/O ports 0xc30 and 0xc32
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uint16_t towns_state::towns_scsi_dma_r()
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{
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return m_scsi->fmscsi_data_r();
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}
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void towns_state::towns_scsi_dma_w(uint16_t data)
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{
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m_scsi->fmscsi_data_w(data & 0xff);
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}
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WRITE_LINE_MEMBER(towns_state::towns_scsi_irq)
|
||||
{
|
||||
m_pic_slave->ir0_w(state);
|
||||
@ -2374,6 +2364,13 @@ void towns_state::towns_io(address_map &map)
|
||||
map(0xff80, 0xffff).rw(FUNC(towns_state::towns_video_cff80_r), FUNC(towns_state::towns_video_cff80_w));
|
||||
}
|
||||
|
||||
void towns_state::towns_1g_io(address_map &map)
|
||||
{
|
||||
// For the first generation FM Towns with a SCSI card slot
|
||||
towns_io(map);
|
||||
map(0x0c30, 0x0c37).rw(m_scsi_slot, FUNC(fmt_scsi_slot_device::read), FUNC(fmt_scsi_slot_device::write)).umask32(0x00ff00ff);
|
||||
}
|
||||
|
||||
void towns_state::towns2_io(address_map &map)
|
||||
{
|
||||
// For FM Towns II models with integrated SCSI controller
|
||||
@ -2831,7 +2828,7 @@ void towns_state::towns_base(machine_config &config)
|
||||
/* basic machine hardware */
|
||||
I386(config, m_maincpu, 16000000);
|
||||
m_maincpu->set_addrmap(AS_PROGRAM, &towns_state::towns_mem);
|
||||
m_maincpu->set_addrmap(AS_IO, &towns_state::towns_io);
|
||||
m_maincpu->set_addrmap(AS_IO, &towns_state::towns_1g_io);
|
||||
m_maincpu->set_vblank_int("screen", FUNC(towns_state::towns_vsync_irq));
|
||||
m_maincpu->set_irq_acknowledge_callback("pic8259_master", FUNC(pic8259_device::inta_cb));
|
||||
//MCFG_MACHINE_RESET_OVERRIDE(towns_state,towns)
|
||||
@ -2960,6 +2957,15 @@ void towns_state::towns(machine_config &config)
|
||||
{
|
||||
towns_base(config);
|
||||
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
|
||||
|
||||
FMT_SCSI_SLOT(config, m_scsi_slot, fmt_scsi_default_devices, nullptr);
|
||||
m_scsi_slot->irq_handler().set(FUNC(towns_state::towns_scsi_irq));
|
||||
m_scsi_slot->drq_handler().set(FUNC(towns_state::towns_scsi_drq));
|
||||
|
||||
m_dma[0]->dma_read_callback<1>().set(m_scsi_slot, FUNC(fmt_scsi_slot_device::data_read));
|
||||
m_dma[0]->dma_write_callback<1>().set(m_scsi_slot, FUNC(fmt_scsi_slot_device::data_write));
|
||||
m_dma[1]->dma_read_callback<1>().set(m_scsi_slot, FUNC(fmt_scsi_slot_device::data_read));
|
||||
m_dma[1]->dma_write_callback<1>().set(m_scsi_slot, FUNC(fmt_scsi_slot_device::data_write));
|
||||
}
|
||||
|
||||
void towns16_state::townsux(machine_config &config)
|
||||
@ -2984,10 +2990,10 @@ void towns16_state::townsux(machine_config &config)
|
||||
m_scsi->irq_handler().set(FUNC(towns16_state::towns_scsi_irq));
|
||||
m_scsi->drq_handler().set(FUNC(towns16_state::towns_scsi_drq));
|
||||
|
||||
m_dma[0]->dma_read_callback<1>().set(FUNC(towns16_state::towns_scsi_dma_r));
|
||||
m_dma[0]->dma_write_callback<1>().set(FUNC(towns16_state::towns_scsi_dma_w));
|
||||
m_dma[1]->dma_read_callback<1>().set(FUNC(towns16_state::towns_scsi_dma_r));
|
||||
m_dma[1]->dma_write_callback<1>().set(FUNC(towns16_state::towns_scsi_dma_w));
|
||||
m_dma[0]->dma_read_callback<1>().set(m_scsi, FUNC(fmscsi_device::fmscsi_data_r));
|
||||
m_dma[0]->dma_write_callback<1>().set(m_scsi, FUNC(fmscsi_device::fmscsi_data_w));
|
||||
m_dma[1]->dma_read_callback<1>().set(m_scsi, FUNC(fmscsi_device::fmscsi_data_r));
|
||||
m_dma[1]->dma_write_callback<1>().set(m_scsi, FUNC(fmscsi_device::fmscsi_data_w));
|
||||
|
||||
// 2 MB onboard, one SIMM slot with 2-8 MB
|
||||
m_ram->set_default_size("2M").set_extra_options("4M,6M,10M");
|
||||
@ -2997,7 +3003,7 @@ void towns16_state::townsux(machine_config &config)
|
||||
|
||||
void towns_state::townssj(machine_config &config)
|
||||
{
|
||||
towns(config);
|
||||
towns_base(config);
|
||||
|
||||
I486(config.replace(), m_maincpu, 66000000);
|
||||
m_maincpu->set_addrmap(AS_PROGRAM, &towns_state::towns_mem);
|
||||
@ -3017,13 +3023,15 @@ void towns_state::townssj(machine_config &config)
|
||||
m_scsi->irq_handler().set(FUNC(towns_state::towns_scsi_irq));
|
||||
m_scsi->drq_handler().set(FUNC(towns_state::towns_scsi_drq));
|
||||
|
||||
m_dma[0]->dma_read_callback<1>().set(FUNC(towns_state::towns_scsi_dma_r));
|
||||
m_dma[0]->dma_write_callback<1>().set(FUNC(towns_state::towns_scsi_dma_w));
|
||||
m_dma[1]->dma_read_callback<1>().set(FUNC(towns_state::towns_scsi_dma_r));
|
||||
m_dma[1]->dma_write_callback<1>().set(FUNC(towns_state::towns_scsi_dma_w));
|
||||
m_dma[0]->dma_read_callback<1>().set(m_scsi, FUNC(fmscsi_device::fmscsi_data_r));
|
||||
m_dma[0]->dma_write_callback<1>().set(m_scsi, FUNC(fmscsi_device::fmscsi_data_w));
|
||||
m_dma[1]->dma_read_callback<1>().set(m_scsi, FUNC(fmscsi_device::fmscsi_data_r));
|
||||
m_dma[1]->dma_write_callback<1>().set(m_scsi, FUNC(fmscsi_device::fmscsi_data_w));
|
||||
|
||||
// 4 MB (SJ2/SJ2A) or 8 MB (SJ26/SJ53) onboard, 2 SIMM slots with 4-32 MB each
|
||||
m_ram->set_default_size("8M").set_extra_options("4M,12M,16M,20M,24M,28M,32M,36M,40M,44M,48M,52M,56M,68M,72M");
|
||||
|
||||
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
|
||||
}
|
||||
|
||||
void towns_state::townshr(machine_config &config)
|
||||
|
||||
@ -26,6 +26,8 @@
|
||||
#include "bus/generic/carts.h"
|
||||
#include "bus/generic/slot.h"
|
||||
#include "bus/rs232/rs232.h"
|
||||
#include "bus/fmt_scsi/fmt_scsi.h"
|
||||
#include "bus/fmt_scsi/fmt121.h"
|
||||
|
||||
#include "formats/fmtowns_dsk.h"
|
||||
|
||||
@ -111,6 +113,7 @@ class towns_state : public driver_device
|
||||
, m_dma_1(*this, "dma_1")
|
||||
, m_cdrom(*this, "cdrom")
|
||||
, m_cdda(*this, "cdda")
|
||||
, m_scsi_slot(*this, "scsislot")
|
||||
, m_bank_cb000_r(*this, "bank_cb000_r")
|
||||
, m_bank_cb000_w(*this, "bank_cb000_w")
|
||||
, m_bank_f8000_r(*this, "bank_f8000_r")
|
||||
@ -150,6 +153,7 @@ protected:
|
||||
void pcm_mem(address_map &map);
|
||||
void towns16_io(address_map &map);
|
||||
void towns_io(address_map &map);
|
||||
void towns_1g_io(address_map &map);
|
||||
void towns2_io(address_map &map);
|
||||
void townsux_io(address_map &map);
|
||||
void towns_mem(address_map &map);
|
||||
@ -167,8 +171,6 @@ protected:
|
||||
|
||||
DECLARE_WRITE_LINE_MEMBER(towns_scsi_irq);
|
||||
DECLARE_WRITE_LINE_MEMBER(towns_scsi_drq);
|
||||
uint16_t towns_scsi_dma_r();
|
||||
void towns_scsi_dma_w(uint16_t data);
|
||||
|
||||
private:
|
||||
/* devices */
|
||||
@ -187,6 +189,7 @@ private:
|
||||
required_device<upd71071_device> m_dma_1;
|
||||
required_device<cdrom_image_device> m_cdrom;
|
||||
required_device<cdda_device> m_cdda;
|
||||
optional_device<fmt_scsi_slot_device> m_scsi_slot;
|
||||
|
||||
required_memory_bank m_bank_cb000_r;
|
||||
required_memory_bank m_bank_cb000_w;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user