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authorGravatarGravatar AJR <ajrhacker@users.noreply.github.com>2019-11-12 22:17:28 -0500
committerGravatarGravatar AJR <ajrhacker@users.noreply.github.com>2019-11-12 22:18:43 -0500
commit8306e7a0efa44e3f2ae7e7501ffc51e56b9d5d20 (patch)
tree3565043290575ef572bec1795b14c63b025463e3 /src/devices
parent0c70101b74db61f883fdd7907a4975ffff735044 (diff)
Add dump and skeleton device for Sony SMO-C501 MO Disk Controller [Don Maslin Vintage Computer Archive]
Diffstat (limited to 'src/devices')
-rw-r--r--src/devices/bus/nscsi/devices.cpp2
-rw-r--r--src/devices/bus/nscsi/smoc501.cpp91
-rw-r--r--src/devices/bus/nscsi/smoc501.h30
3 files changed, 123 insertions, 0 deletions
diff --git a/src/devices/bus/nscsi/devices.cpp b/src/devices/bus/nscsi/devices.cpp
index c8f45a0d84a..b4ed8530db4 100644
--- a/src/devices/bus/nscsi/devices.cpp
+++ b/src/devices/bus/nscsi/devices.cpp
@@ -9,6 +9,7 @@
#include "bus/nscsi/cw7501.h"
#include "bus/nscsi/hd.h"
#include "bus/nscsi/s1410.h"
+#include "bus/nscsi/smoc501.h"
void default_scsi_devices(device_slot_interface &device)
{
@@ -19,4 +20,5 @@ void default_scsi_devices(device_slot_interface &device)
device.option_add("cdr4210", CDR4210);
device.option_add("cdrn820s", CDRN820S);
device.option_add("cdd2000", CDD2000);
+ device.option_add("smoc501", SMOC501);
};
diff --git a/src/devices/bus/nscsi/smoc501.cpp b/src/devices/bus/nscsi/smoc501.cpp
new file mode 100644
index 00000000000..48ede8a888c
--- /dev/null
+++ b/src/devices/bus/nscsi/smoc501.cpp
@@ -0,0 +1,91 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+/**********************************************************************
+
+ Sony SMO-C501 Magneto Optical Disk Controller
+
+ This is the SCSI/M-ESDI bridge controller for the SMO-D501 and
+ SMO-E501 MO disk drives.
+
+ The PCB features some ASICs by ADSI.
+
+**********************************************************************/
+
+#include "emu.h"
+#include "smoc501.h"
+
+#include "cpu/nec/v5x.h"
+#include "machine/wd33c9x.h"
+
+DEFINE_DEVICE_TYPE(SMOC501, smoc501_device, "smoc501", "Sony SMO-C501 MO Disk Controller")
+
+smoc501_device::smoc501_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : device_t(mconfig, SMOC501, tag, owner, clock)
+ , nscsi_slot_card_interface(mconfig, *this, "scsic")
+{
+}
+
+void smoc501_device::device_start()
+{
+}
+
+
+void smoc501_device::mem_map(address_map &map)
+{
+ map(0x00000, 0x07fff).ram();
+ map(0x0a000, 0x0a01f).rw("scsic", FUNC(wd33c93_device::dir_r), FUNC(wd33c93_device::dir_w));
+ map(0xf0000, 0xfffff).rom().region("microcode", 0);
+}
+
+
+static INPUT_PORTS_START(smoc501)
+ PORT_START("DSW")
+ PORT_DIPNAME(0x80, 0x80, "Loading Control") PORT_DIPLOCATION("DSW:1")
+ PORT_DIPSETTING(0x80, DEF_STR(Off))
+ PORT_DIPSETTING(0x00, DEF_STR(On))
+ PORT_DIPNAME(0x40, 0x40, "Eject Mode") PORT_DIPLOCATION("DSW:2")
+ PORT_DIPSETTING(0x40, "Eject Button")
+ PORT_DIPSETTING(0x00, "Controller")
+ PORT_DIPNAME(0x20, 0x20, "Temporary Mode") PORT_DIPLOCATION("DSW:3")
+ PORT_DIPSETTING(0x00, "512 Bytes/Sector")
+ PORT_DIPSETTING(0x20, "1024 Bytes/Sector")
+ PORT_DIPNAME(0x10, 0x00, "Terminator") PORT_DIPLOCATION("DSW:4")
+ PORT_DIPSETTING(0x10, DEF_STR(Off))
+ PORT_DIPSETTING(0x00, "On (Last Drive)")
+ PORT_DIPNAME(0x08, 0x00, "Auto Spin Up") PORT_DIPLOCATION("DSW:5")
+ PORT_DIPSETTING(0x08, "By Drive Unit")
+ PORT_DIPSETTING(0x00, "By Controller")
+ PORT_DIPNAME(0x07, 0x06, "Drive Number") PORT_DIPLOCATION("DSW:8,7,6")
+ PORT_DIPSETTING(0x07, "0")
+ PORT_DIPSETTING(0x06, "1")
+ PORT_DIPSETTING(0x05, "2")
+ PORT_DIPSETTING(0x04, "3")
+ PORT_DIPSETTING(0x03, "4")
+ PORT_DIPSETTING(0x02, "5")
+ PORT_DIPSETTING(0x01, "6")
+ PORT_DIPSETTING(0x00, "7")
+INPUT_PORTS_END
+
+ioport_constructor smoc501_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME(smoc501);
+}
+
+void smoc501_device::device_add_mconfig(machine_config &config)
+{
+ v40_device &mpu(V40(config, "mpu", 16'000'000)); // clock is guessed
+ mpu.set_addrmap(AS_PROGRAM, &smoc501_device::mem_map);
+
+ wd33c93_device &scsic(WD33C93(config, "scsic", 10'000'000)); // clock is guessed
+ scsic.irq_cb().set_inputline("mpu", INPUT_LINE_IRQ5);
+}
+
+ROM_START(smoc501)
+ ROM_REGION(0x10000, "microcode", 0)
+ ROM_LOAD("c501-00.rom", 0x00000, 0x10000, CRC(0ae04500) SHA1(96c73a3a2ecdc8c903e920f2afba5b4edd5cdba6))
+ROM_END
+
+const tiny_rom_entry *smoc501_device::device_rom_region() const
+{
+ return ROM_NAME(smoc501);
+}
diff --git a/src/devices/bus/nscsi/smoc501.h b/src/devices/bus/nscsi/smoc501.h
new file mode 100644
index 00000000000..c4ecb6ad00c
--- /dev/null
+++ b/src/devices/bus/nscsi/smoc501.h
@@ -0,0 +1,30 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+
+#ifndef MAME_BUS_NSCSI_SMOC501_H
+#define MAME_BUS_NSCSI_SMOC501_H
+
+#pragma once
+
+#include "machine/nscsi_bus.h"
+
+class smoc501_device : public device_t, public nscsi_slot_card_interface
+{
+public:
+ smoc501_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+ static constexpr feature_type unemulated_features() { return feature::DISK; }
+
+protected:
+ virtual void device_start() override;
+ virtual ioport_constructor device_input_ports() const override;
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual const tiny_rom_entry *device_rom_region() const override;
+
+private:
+ void mem_map(address_map &map);
+};
+
+DECLARE_DEVICE_TYPE(SMOC501, smoc501_device)
+
+#endif // MAME_BUS_NSCSI_CDD2000_H