From 8bb26b3bc0d95587fbf636f754472b84c4c65471 Mon Sep 17 00:00:00 2001 From: AJR Date: Wed, 13 Mar 2019 00:34:21 -0400 Subject: Add skeleton BusLogic BT-545S SCSI host adapter device [modem7, minuszerodegrees.net] --- scripts/src/bus.lua | 2 + src/devices/bus/isa/bt54x.cpp | 102 ++++++++++++++++++++++++++++++++++++++ src/devices/bus/isa/bt54x.h | 43 ++++++++++++++++ src/devices/bus/isa/isa_cards.cpp | 2 + src/devices/machine/ncr5390.cpp | 19 +++++-- src/devices/machine/ncr5390.h | 9 ++++ 6 files changed, 173 insertions(+), 4 deletions(-) create mode 100644 src/devices/bus/isa/bt54x.cpp create mode 100644 src/devices/bus/isa/bt54x.h diff --git a/scripts/src/bus.lua b/scripts/src/bus.lua index 0713710baaa..8dda31fadf3 100644 --- a/scripts/src/bus.lua +++ b/scripts/src/bus.lua @@ -1300,6 +1300,8 @@ if (BUSES["ISA"]~=null) then MAME_DIR .. "src/devices/bus/isa/lbaenhancer.h", MAME_DIR .. "src/devices/bus/isa/np600.cpp", MAME_DIR .. "src/devices/bus/isa/np600.h", + MAME_DIR .. "src/devices/bus/isa/bt54x.cpp", + MAME_DIR .. "src/devices/bus/isa/bt54x.h", } end diff --git a/src/devices/bus/isa/bt54x.cpp b/src/devices/bus/isa/bt54x.cpp new file mode 100644 index 00000000000..baab0247854 --- /dev/null +++ b/src/devices/bus/isa/bt54x.cpp @@ -0,0 +1,102 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/*************************************************************************** + + BusTek/BusLogic BT-54x series PC/AT SCSI host adapters + + The earlier version of the BT-542B, with BusTek labels, has a NCR 86C05 + bus controller where a later version has the 80C20 ASIC instead. It is + believed that these chips are largely compatible with each other, as + are the NCR 53CF94 and Emulex FAS216 SCSI controllers. + +***************************************************************************/ + +#include "emu.h" +#include "bt54x.h" + +#include "machine/ncr5390.h" +//#include "machine/ncr86c05.h" +#include "machine/nscsi_cd.h" +#include "machine/nscsi_hd.h" + +DEFINE_DEVICE_TYPE(BT545S, bt545s_device, "bt545s", "BusLogic BT-545S Fast SCSI Host Adapter") + +bt545s_device::bt545s_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, BT545S, tag, owner, clock) + , device_isa16_card_interface(mconfig, *this) + , m_mpu(*this, "mpu") + , m_fdc(*this, "fdc") + , m_bios(*this, "bios") +{ +} + +void bt545s_device::device_start() +{ +} + +u8 bt545s_device::local_status_r() +{ + return 0; +} + +void bt545s_device::local_map(address_map &map) +{ + map(0x00000, 0x01fff).ram(); + //map(0x02000, 0x0201f).rw("busintf", FUNC(ncr86c05_device::local_read), FUNC(ncr86c05_device::local_write)); + map(0x02080, 0x0208f).m("scsi:7:fsc", FUNC(ncr53cf94_device::map)); + map(0x02180, 0x02180).r(FUNC(bt545s_device::local_status_r)); + map(0xf8000, 0xfffff).rom().region("mpu", 0); +} + +static void fast_scsi_devices(device_slot_interface &device) +{ + // FIXME: these device options are placeholders + device.option_add("cdrom", NSCSI_CDROM); + device.option_add("harddisk", NSCSI_HARDDISK); + device.option_add_internal("fsc", NCR53CF94); // FAS216 +} + +void bt545s_device::fsc_config(device_t *device) +{ + ncr53cf94_device &fsc = downcast(*device); + + fsc.set_clock(40_MHz_XTAL); + + fsc.irq_handler_cb().set(m_mpu, FUNC(i80188_cpu_device::int0_w)); // mostly polled + //fsc.drq_handler_cb().set("busintf", FUNC(ncr86c05_device::dma_req_w)); +} + +void bt545s_device::device_add_mconfig(machine_config &config) +{ + I80188(config, m_mpu, 40_MHz_XTAL / 2); // SAB80188-1-N; clock guessed + m_mpu->set_addrmap(AS_PROGRAM, &bt545s_device::local_map); + + //ncr86c05_device &busintf(NCR86C05(config, "busintf", 0)); + //busintf.mint_callback().set(m_mpu, FUNC(i80188_cpu_device::int1_w)); + //busintf.dma_ack_callback().set("scsi:7:fsc", FUNC(ncr53cf94_device::dma_w)); + + NSCSI_BUS(config, "scsi"); + NSCSI_CONNECTOR(config, "scsi:0", fast_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsi:1", fast_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsi:2", fast_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsi:3", fast_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsi:4", fast_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsi:5", fast_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsi:6", fast_scsi_devices, nullptr); + NSCSI_CONNECTOR(config, "scsi:7", fast_scsi_devices, "fsc", true).set_option_machine_config("fsc", [this] (device_t *device) { fsc_config(device); }); + + PC8477A(config, m_fdc, 24_MHz_XTAL); // actually PC8477BV +} + +ROM_START(bt545s) + ROM_REGION(0x4000, "bios", 0) // "(C) Copyright 1992 BIOS Version 4.50" + ROM_LOAD("u15_27128_5002026-4.50.bin", 0x0000, 0x4000, CRC(1bd3247b) SHA1(9d46a99f4b3057e94ef422f387218de2c4553c1a)) + + ROM_REGION(0x8000, "mpu", 0) // "(C) Copyright 1992 BusLogic Inc. 542BH92/10/05" + ROM_LOAD("u2_27256_5002005-3.31.bin", 0x0000, 0x8000, CRC(20473714) SHA1(797a8dba182049949f7a5c14d8bef4b4e908305b)) +ROM_END + +const tiny_rom_entry *bt545s_device::device_rom_region() const +{ + return ROM_NAME(bt545s); +} diff --git a/src/devices/bus/isa/bt54x.h b/src/devices/bus/isa/bt54x.h new file mode 100644 index 00000000000..754d561978b --- /dev/null +++ b/src/devices/bus/isa/bt54x.h @@ -0,0 +1,43 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/*************************************************************************** + + BusTek/BusLogic BT-54x series PC/AT SCSI host adapters + +***************************************************************************/ + +#ifndef MAME_BUS_ISA_BT54X_H +#define MAME_BUS_ISA_BT54X_H + +#pragma once + +#include "isa.h" +#include "cpu/i86/i186.h" +#include "machine/upd765.h" + +class bt545s_device : public device_t, public device_isa16_card_interface +{ +public: + bt545s_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_add_mconfig(machine_config &config) override; + virtual const tiny_rom_entry *device_rom_region() const override; + virtual void device_start() override; + +private: + u8 local_status_r(); + + void local_map(address_map &map); + void fsc_config(device_t *device); + + required_device m_mpu; + required_device m_fdc; + required_region_ptr m_bios; +}; + +DECLARE_DEVICE_TYPE(BT545S, bt545s_device) + +#endif // MAME_BUS_ISA_BT54X_H diff --git a/src/devices/bus/isa/isa_cards.cpp b/src/devices/bus/isa/isa_cards.cpp index 45d59a5b53e..5b52dbd0546 100644 --- a/src/devices/bus/isa/isa_cards.cpp +++ b/src/devices/bus/isa/isa_cards.cpp @@ -37,6 +37,7 @@ #include "mcd.h" #include "lbaenhancer.h" #include "cl_sh260.h" +#include "bt54x.h" // sound #include "adlib.h" @@ -173,4 +174,5 @@ void pc_isa16_cards(device_slot_interface &device) device.option_add("wd1007a", WD1007A); device.option_add("ev346", EV346); device.option_add("jc1310", JC1310); + device.option_add("bt545s", BT545S); } diff --git a/src/devices/machine/ncr5390.cpp b/src/devices/machine/ncr5390.cpp index 571c42969f0..10b7510d707 100644 --- a/src/devices/machine/ncr5390.cpp +++ b/src/devices/machine/ncr5390.cpp @@ -20,9 +20,10 @@ #define DELAY_HACK -DEFINE_DEVICE_TYPE(NCR5390, ncr5390_device, "ncr5390", "NCR 5390 SCSI") -DEFINE_DEVICE_TYPE(NCR53C90A, ncr53c90a_device, "ncr53c90a", "NCR 53C90A SCSI") -DEFINE_DEVICE_TYPE(NCR53C94, ncr53c94_device, "ncr53c94", "NCR 53C94 SCSI") +DEFINE_DEVICE_TYPE(NCR5390, ncr5390_device, "ncr5390", "NCR 5390 SCSI Controller") +DEFINE_DEVICE_TYPE(NCR53C90A, ncr53c90a_device, "ncr53c90a", "NCR 53C90A Advanced SCSI Controller") +DEFINE_DEVICE_TYPE(NCR53C94, ncr53c94_device, "ncr53c94", "NCR 53C94 Advanced SCSI Controller") +DEFINE_DEVICE_TYPE(NCR53CF94, ncr53cf94_device, "ncr53cf94", "NCR 53CF94-2 Fast SCSI Controller") // TODO: differences not emulated void ncr5390_device::map(address_map &map) { @@ -147,12 +148,22 @@ ncr53c90a_device::ncr53c90a_device(const machine_config &mconfig, const char *ta } ncr53c94_device::ncr53c94_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : ncr53c90a_device(mconfig, NCR53C94, tag, owner, clock) + : ncr53c94_device(mconfig, NCR53C94, tag, owner, clock) +{ +} + +ncr53c94_device::ncr53c94_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) + : ncr53c90a_device(mconfig, type, tag, owner, clock) , config3(0) , m_busmd(BUSMD_0) { } +ncr53cf94_device::ncr53cf94_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) + : ncr53c94_device(mconfig, NCR53CF94, tag, owner, clock) +{ +} + void ncr5390_device::device_start() { nscsi_device::device_start(); diff --git a/src/devices/machine/ncr5390.h b/src/devices/machine/ncr5390.h index c5277d25ad1..7cc2469bde5 100644 --- a/src/devices/machine/ncr5390.h +++ b/src/devices/machine/ncr5390.h @@ -307,6 +307,8 @@ public: void dma16_w(u16 data); protected: + ncr53c94_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); + enum conf3_mask : u8 { BS8 = 0x01, // burst size 8 @@ -324,8 +326,15 @@ private: busmd_t m_busmd; }; +class ncr53cf94_device : public ncr53c94_device +{ +public: + ncr53cf94_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); +}; + DECLARE_DEVICE_TYPE(NCR5390, ncr5390_device) DECLARE_DEVICE_TYPE(NCR53C90A, ncr53c90a_device) DECLARE_DEVICE_TYPE(NCR53C94, ncr53c94_device) +DECLARE_DEVICE_TYPE(NCR53CF94, ncr53cf94_device) #endif // MAME_MACHINE_NCR5390_H -- cgit v1.2.3