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Diffstat (limited to 'src/devices/bus/isa/ultra24f.cpp')
-rw-r--r-- | src/devices/bus/isa/ultra24f.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/devices/bus/isa/ultra24f.cpp b/src/devices/bus/isa/ultra24f.cpp new file mode 100644 index 00000000000..199545404ca --- /dev/null +++ b/src/devices/bus/isa/ultra24f.cpp @@ -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); +} |