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Add skeleton device for UltraStor Ultra-24F EISA SCSI controller [Metropoli BBS Archive]

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This commit is contained in:
AJR 2019-04-14 21:19:50 -04:00
parent 55558bb1d3
commit 295d25cff0
4 changed files with 141 additions and 0 deletions
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2
scripts/src/bus.lua
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@ -1324,6 +1324,8 @@ if (BUSES["ISA"]~=null) then
MAME_DIR .. "src/devices/bus/isa/ultra12f.h",
MAME_DIR .. "src/devices/bus/isa/ultra14f.cpp",
MAME_DIR .. "src/devices/bus/isa/ultra14f.h",
MAME_DIR .. "src/devices/bus/isa/ultra24f.cpp",
MAME_DIR .. "src/devices/bus/isa/ultra24f.h",
}
end

2
src/devices/bus/isa/isa_cards.cpp
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@ -43,6 +43,7 @@
#include "dcb.h"
#include "ultra12f.h"
#include "ultra14f.h"
#include "ultra24f.h"
// sound
#include "adlib.h"
@ -191,4 +192,5 @@ void pc_isa16_cards(device_slot_interface &device)
device.option_add("dcb", NOVELL_DCB);
device.option_add("ultra12f", ULTRA12F);
device.option_add("ultra14f", ULTRA14F);
device.option_add("ultra24f", ULTRA24F); // actually an EISA card
}

97
src/devices/bus/isa/ultra24f.cpp Normal file
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@ -0,0 +1,97 @@
// license:BSD-3-Clause
// copyright-holders:AJR
/***************************************************************************
UltraStor Ultra-24F EISA SCSI Host Adapter
***************************************************************************/
#include "emu.h"
#include "ultra24f.h"
#include "cpu/m68000/m68000.h"
//#include "machine/i82355.h"
#include "machine/ncr5390.h"
#include "machine/nscsi_bus.h"
#include "machine/nscsi_hd.h"
DEFINE_DEVICE_TYPE(ULTRA24F, ultra24f_device, "ultra24f", "Ultra-24F SCSI Host Adapter")
ultra24f_device::ultra24f_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, ULTRA24F, tag, owner, clock)
, device_isa16_card_interface(mconfig, *this)
, m_uscpu(*this, "uscpu")
, m_fdc(*this, "fdc")
, m_bios16(*this, "bios16")
{
}
void ultra24f_device::device_start()
{
// Firmware EPROMs have a couple of lines scrambled
u16 *firmware = &memregion("firmware")->as_u16();
for (offs_t b = 0; b < 0x8000; b += 0x100)
{
std::swap_ranges(&firmware[b | 0x10], &firmware[b | 0x20], &firmware[b | 0x80]);
std::swap_ranges(&firmware[b | 0x30], &firmware[b | 0x40], &firmware[b | 0xa0]);
std::swap_ranges(&firmware[b | 0x50], &firmware[b | 0x60], &firmware[b | 0xc0]);
std::swap_ranges(&firmware[b | 0x70], &firmware[b | 0x80], &firmware[b | 0xe0]);
}
}
void ultra24f_device::uscpu_map(address_map &map)
{
map(0x000000, 0x00ffff).rom().region("firmware", 0);
map(0xa00000, 0xa00001).nopr();
//map(0xff8001, 0xff8001).select(0x18).rw(FUNC(ultra24f_device::bmic_r), FUNC(ultra24f_device::bmic_w));
map(0xff9000, 0xff901f).m("scsi:7:scsic", FUNC(ncr53cf94_device::map)).umask16(0x00ff);
map(0xffc000, 0xffffff).ram();
}
static void u24f_scsi_devices(device_slot_interface &device)
{
device.option_add("harddisk", NSCSI_HARDDISK);
device.option_add_internal("scsic", NCR53CF94); // Emulex FAS216
}
void ultra24f_device::scsic_config(device_t *device)
{
device->set_clock(40_MHz_XTAL);
//downcast<ncr53cf94_device &>(*device).irq_handler_cb().set_inputline(m_uscpu, M68K_IRQ_1);
}
void ultra24f_device::device_add_mconfig(machine_config &config)
{
M68000(config, m_uscpu, 32_MHz_XTAL / 4); // custom-marked as USC080-5-12A; clock guessed
m_uscpu->set_addrmap(AS_PROGRAM, &ultra24f_device::uscpu_map);
NSCSI_BUS(config, "scsi");
NSCSI_CONNECTOR(config, "scsi:0", u24f_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:1", u24f_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:2", u24f_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:3", u24f_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:4", u24f_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:5", u24f_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:6", u24f_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:7", u24f_scsi_devices, "scsic", true)
.set_option_machine_config("scsic", [this] (device_t *device) { scsic_config(device); });
DP8473(config, m_fdc, 24_MHz_XTAL); // custom-marked as USC020-1-24
}
ROM_START(ultra24f)
ROM_REGION16_BE(0x10000, "firmware", 0)
ROM_LOAD16_BYTE("28111008.bin", 0x00000, 0x08000, CRC(fcced531) SHA1(2ebcf57c4aea56eb2646e826d9cb3370ebef042e))
ROM_LOAD16_BYTE("28110008.bin", 0x00001, 0x08000, CRC(3f26d927) SHA1(4ab98840e3af72bf08adfcf478e708fad309f4b7))
//ROM_LOAD16_BYTE("28110.008", 0x00001, 0x08000, CRC(1d24cf9e) SHA1(6120af5308ed1cb0e5c3d14a4b436edb6559f8a5)) // identical except for last byte being 0xff instead of 0x49
ROM_REGION16_LE(0x8000, "bios16", 0) // "Date : 06/24/92 Version 2.00"
ROM_LOAD16_BYTE("38110005.bin", 0x0000, 0x4000, CRC(498f2aa5) SHA1(8405a91bb445cb99059c65a2e711d425fc69f5d6))
ROM_LOAD16_BYTE("38111005.bin", 0x0001, 0x4000, CRC(826d5ad1) SHA1(052602e4788b7364670f7c0b5fe0bb0eacc4d9ac))
// UltraStor also offered double-size binaries for programming onto 27C256 ROMs, with identical data in both halves of each file
ROM_END
const tiny_rom_entry *ultra24f_device::device_rom_region() const
{
return ROM_NAME(ultra24f);
}

40
src/devices/bus/isa/ultra24f.h Normal file
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@ -0,0 +1,40 @@
// license:BSD-3-Clause
// copyright-holders:AJR
/***************************************************************************
UltraStor Ultra-24F EISA SCSI Host Adapter
***************************************************************************/
#ifndef MAME_BUS_ISA_ULTRA24F_H
#define MAME_BUS_ISA_ULTRA24F_H
#pragma once
#include "isa.h"
#include "machine/upd765.h"
class ultra24f_device : public device_t, public device_isa16_card_interface
{
public:
ultra24f_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 uscpu_map(address_map &map);
void scsic_config(device_t *device);
required_device<cpu_device> m_uscpu;
required_device<upd765_family_device> m_fdc;
required_region_ptr<u16> m_bios16;
};
DECLARE_DEVICE_TYPE(ULTRA24F, ultra24f_device)
#endif // MAME_BUS_ISA_ULTRA24F_H