summaryrefslogtreecommitdiffstatshomepage
diff options
context:
space:
mode:
author Olivier Galibert <galibert@pobox.com>2021-04-14 09:33:59 +0200
committer Olivier Galibert <galibert@pobox.com>2021-04-14 09:34:44 +0200
commit6cbee7f176d7ae66cbcb51d256426756e1859240 (patch)
tree1edea10ed44ca06ef7ad775397e7815388b39483
parent619559516f7df2f60150bf4277aaaf9bd3f843de (diff)
cdu415: Add skeleton
-rw-r--r--scripts/src/bus.lua2
-rw-r--r--src/devices/bus/nscsi/cdu415.cpp72
-rw-r--r--src/devices/bus/nscsi/cdu415.h38
-rw-r--r--src/devices/bus/nscsi/cdu75s.cpp8
-rw-r--r--src/devices/bus/nscsi/devices.cpp2
5 files changed, 118 insertions, 4 deletions
diff --git a/scripts/src/bus.lua b/scripts/src/bus.lua
index e30a51e2c2e..2467b670916 100644
--- a/scripts/src/bus.lua
+++ b/scripts/src/bus.lua
@@ -2505,6 +2505,8 @@ if (BUSES["NSCSI"]~=null) then
MAME_DIR .. "src/devices/bus/nscsi/cdrn820s.h",
MAME_DIR .. "src/devices/bus/nscsi/cdu75s.cpp",
MAME_DIR .. "src/devices/bus/nscsi/cdu75s.h",
+ MAME_DIR .. "src/devices/bus/nscsi/cdu415.cpp",
+ MAME_DIR .. "src/devices/bus/nscsi/cdu415.h",
MAME_DIR .. "src/devices/bus/nscsi/cw7501.cpp",
MAME_DIR .. "src/devices/bus/nscsi/cw7501.h",
MAME_DIR .. "src/devices/bus/nscsi/devices.cpp",
diff --git a/src/devices/bus/nscsi/cdu415.cpp b/src/devices/bus/nscsi/cdu415.cpp
new file mode 100644
index 00000000000..a3b733b01d7
--- /dev/null
+++ b/src/devices/bus/nscsi/cdu415.cpp
@@ -0,0 +1,72 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert
+/*******************************************************************************
+
+ Skeleton device for Sony CDU415 cdrom reader
+
+*******************************************************************************/
+
+// Chips:
+// - IC201: H8/3032 - main mcu, 64k internal rom
+// - IC202: CXD1804AR - cdrom decoder and scsi interface
+// - IC203: V53C16126HK40 - DRAM 128k*16
+// - IC205: BU6243K - ?
+// - IC207: AM28F512 - Firmware
+
+#include "emu.h"
+#include "cdu415.h"
+
+DEFINE_DEVICE_TYPE(CDU415, cdu415_device, "cdu415", "Sony CDU415 CD-R")
+
+cdu415_device::cdu415_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : device_t(mconfig, CDU415, tag, owner, clock)
+ , nscsi_slot_card_interface(mconfig, *this, "cxd1804ar")
+ , m_mcu(*this, "mcu")
+ , m_scsi(*this, "cxd1804ar")
+ , m_rom(*this, "mcu")
+{
+}
+
+void cdu415_device::device_start()
+{
+ // The reset vector is the only obvious one there.
+ m_rom[0] = m_rom[0x8000];
+ m_rom[1] = m_rom[0x8001];
+}
+
+void cdu415_device::mem_map(address_map &map)
+{
+ map(0x00000, 0x0ffff).rom().region("mcu", 0);
+ map(0x20000, 0x2ffff).rom().region("mcu", 0x10000);
+}
+
+void cdu415_device::io_map(address_map &map)
+{
+}
+
+void cdu415_device::device_add_mconfig(machine_config &config)
+{
+ H83032(config, m_mcu, 10000000);
+ m_mcu->set_addrmap(AS_PROGRAM, &cdu415_device::mem_map);
+ m_mcu->set_addrmap(AS_IO, &cdu415_device::io_map);
+
+ NCR53C94(config, m_scsi, 25'000'000); // Temporary placeholder
+}
+
+ROM_START(cdu415)
+ ROM_REGION(0x20000, "mcu", 0)
+ ROM_FILL(0x00000, 0x10000, 0x00) // Internal rom not yet dumped
+ ROM_LOAD("cdu415.bin", 0x10000, 0x10000, CRC(9873b898) SHA1(72d0b192efc32f7c8985dd96df3e346c57a236e7))
+ROM_END
+
+const tiny_rom_entry *cdu415_device::device_rom_region() const
+{
+ return ROM_NAME(cdu415);
+}
+
+u8 cdu415_device::jumpers_r()
+{
+ u32 jumpers_id = strtol(owner()->basetag(), nullptr, 16);
+ return (jumpers_id ^ 7) << 1;
+}
+
diff --git a/src/devices/bus/nscsi/cdu415.h b/src/devices/bus/nscsi/cdu415.h
new file mode 100644
index 00000000000..2874c69a8cf
--- /dev/null
+++ b/src/devices/bus/nscsi/cdu415.h
@@ -0,0 +1,38 @@
+// license:BSD-3-Clause
+// copyright-holders:O. Galibert
+
+#ifndef MAME_BUS_NSCSI_CDU415_H
+#define MAME_BUS_NSCSI_CDU415_H
+
+#pragma once
+
+#include "machine/nscsi_bus.h"
+#include "cpu/h8/h83032.h"
+#include "machine/ncr5390.h"
+
+class cdu415_device : public device_t, public nscsi_slot_card_interface
+{
+public:
+ cdu415_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 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);
+ void io_map(address_map &map);
+
+ required_device<h83032_device> m_mcu;
+ required_device<ncr53c94_device> m_scsi;
+ required_region_ptr<u16> m_rom;
+
+ u8 jumpers_r();
+};
+
+DECLARE_DEVICE_TYPE(CDU415, cdu415_device)
+
+#endif // MAME_BUS_NSCSI_CDU415_H
diff --git a/src/devices/bus/nscsi/cdu75s.cpp b/src/devices/bus/nscsi/cdu75s.cpp
index 3d5618e3575..9d77fe226d3 100644
--- a/src/devices/bus/nscsi/cdu75s.cpp
+++ b/src/devices/bus/nscsi/cdu75s.cpp
@@ -1,5 +1,5 @@
// license:BSD-3-Clause
-// copyright-holders:AJR
+// copyright-holders:Olivier Galibert
/*******************************************************************************
Skeleton device for Sony/Apple CDU75S 2x cdrom reader
@@ -7,7 +7,7 @@
*******************************************************************************/
// Chips:
-// - IC101: CXA1841Q - ? probably something related to audio
+// - IC101: CXA1841Q - RF signal analog amplifier
// - IC102: CXA1182Q-Z - servo control
// - IC103: CXD2510Q - CD DSP
// - IC105: BU4053BCF - analog mux/demux
@@ -22,7 +22,7 @@
#include "emu.h"
#include "cdu75s.h"
-DEFINE_DEVICE_TYPE(CDU75S, cdu75s_device, "cdu75s", "Philips CDU75S CD-R")
+DEFINE_DEVICE_TYPE(CDU75S, cdu75s_device, "cdu75s", "Sony/Apple CDU75S CD-R")
cdu75s_device::cdu75s_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, CDU75S, tag, owner, clock)
@@ -64,7 +64,7 @@ void cdu75s_device::mem_map(address_map &map)
map(0x00000, 0x1ffff).rom().region("mcu", 0);
map(0x40000, 0x4000f).m(m_scsi, FUNC(ncr53c94_device::map));
- map(0x60000, 0x60007); // General i/o?
+ map(0x60000, 0x60007); // CXD8532Q
map(0x60005, 0x60005).r(FUNC(cdu75s_device::jumpers_r));
map(0xc0000, 0xc003f); // CXD1808AQ
diff --git a/src/devices/bus/nscsi/devices.cpp b/src/devices/bus/nscsi/devices.cpp
index 98d6db0553a..92df70735d1 100644
--- a/src/devices/bus/nscsi/devices.cpp
+++ b/src/devices/bus/nscsi/devices.cpp
@@ -8,6 +8,7 @@
#include "bus/nscsi/cdd2000.h"
#include "bus/nscsi/cdrn820s.h"
#include "bus/nscsi/cdu75s.h"
+#include "bus/nscsi/cdu415.h"
#include "bus/nscsi/cw7501.h"
#include "bus/nscsi/hd.h"
#include "bus/nscsi/s1410.h"
@@ -23,6 +24,7 @@ void default_scsi_devices(device_slot_interface &device)
device.option_add("cdrn820s", CDRN820S);
device.option_add("cdd2000", CDD2000);
device.option_add("cdu75s", CDU75S);
+ device.option_add("cdu415", CDU415);
device.option_add("smoc501", SMOC501);
device.option_add("aplcd150", APPLECD150);
};