diff options
author | AJR <ajrhacker@users.noreply.github.com> | 2019-03-22 21:57:11 -0400 |
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committer | AJR <ajrhacker@users.noreply.github.com> | 2019-03-22 21:57:13 -0400 |
commit | 6b57e483d6d4974d4943806f9246d09e114b443e (patch) | |
tree | 4d92dcba50fec0410d2f8311e0c2d4a88db8ebce | |
parent | 517858416d578350f5b9ac1316f3fbfe624b77a8 (diff) |
Add skeleton ISA device for Novell Disk Coprocessor Board [modem7, minuszerodegrees.net]
-rw-r--r-- | scripts/src/bus.lua | 2 | ||||
-rw-r--r-- | src/devices/bus/isa/dcb.cpp | 70 | ||||
-rw-r--r-- | src/devices/bus/isa/dcb.h | 43 | ||||
-rw-r--r-- | src/devices/bus/isa/isa_cards.cpp | 2 |
4 files changed, 117 insertions, 0 deletions
diff --git a/scripts/src/bus.lua b/scripts/src/bus.lua index 45e592ff234..d846e8b6abd 100644 --- a/scripts/src/bus.lua +++ b/scripts/src/bus.lua @@ -1316,6 +1316,8 @@ if (BUSES["ISA"]~=null) then MAME_DIR .. "src/devices/bus/isa/np600.h", MAME_DIR .. "src/devices/bus/isa/bt54x.cpp", MAME_DIR .. "src/devices/bus/isa/bt54x.h", + MAME_DIR .. "src/devices/bus/isa/dcb.cpp", + MAME_DIR .. "src/devices/bus/isa/dcb.h", } end diff --git a/src/devices/bus/isa/dcb.cpp b/src/devices/bus/isa/dcb.cpp new file mode 100644 index 00000000000..78ff81a6839 --- /dev/null +++ b/src/devices/bus/isa/dcb.cpp @@ -0,0 +1,70 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/*************************************************************************** + + Novell Disk Coprocessor Board (DCB) + + This special SCSI host adapter, later acquired by ADIC, was designed + for use with Novell NetWare. + +***************************************************************************/ + +#include "emu.h" +#include "dcb.h" + +DEFINE_DEVICE_TYPE(NOVELL_DCB, novell_dcb_device, "novell_dcb", "Novell Disk Coprocessor Board (#738-133-001)") + +novell_dcb_device::novell_dcb_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, NOVELL_DCB, tag, owner, clock) + , device_isa16_card_interface(mconfig, *this) + , m_localcpu(*this, "localcpu") + , m_eeprom(*this, "eeprom") +{ +} + +void novell_dcb_device::device_start() +{ +} + +void novell_dcb_device::eeprom_w(u8 data) +{ + m_eeprom->cs_write(BIT(data, 5)); + m_eeprom->clk_write(BIT(data, 6)); + m_eeprom->di_write(BIT(data, 7)); +} + +u8 novell_dcb_device::misc_r() +{ + return m_eeprom->do_read() << 7; +} + +void novell_dcb_device::mem_map(address_map &map) +{ + map(0x00000, 0x03fff).ram(); + map(0xfe000, 0xfffff).rom().region("localcpu", 0); +} + +void novell_dcb_device::io_map(address_map &map) +{ + map(0x0100, 0x0100).w(FUNC(novell_dcb_device::eeprom_w)); + map(0x0180, 0x0180).r(FUNC(novell_dcb_device::misc_r)); +} + +void novell_dcb_device::device_add_mconfig(machine_config &config) +{ + I80188(config, m_localcpu, 16_MHz_XTAL); + m_localcpu->set_addrmap(AS_PROGRAM, &novell_dcb_device::mem_map); + m_localcpu->set_addrmap(AS_IO, &novell_dcb_device::io_map); + + EEPROM_93C06_16BIT(config, m_eeprom); // NMC9306 +} + +ROM_START(novell_dcb) + ROM_REGION(0x2000, "localcpu", 0) + ROM_LOAD("817-186-001_rev_e.bin", 0x0000, 0x2000, CRC(2e2037f4) SHA1(a13c0aab46084a0805256f1d2b8b8beaccc9e253)) +ROM_END + +const tiny_rom_entry *novell_dcb_device::device_rom_region() const +{ + return ROM_NAME(novell_dcb); +} diff --git a/src/devices/bus/isa/dcb.h b/src/devices/bus/isa/dcb.h new file mode 100644 index 00000000000..fbca0303978 --- /dev/null +++ b/src/devices/bus/isa/dcb.h @@ -0,0 +1,43 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/*************************************************************************** + + Novell Disk Coprocessor Board (DCB) + +***************************************************************************/ + +#ifndef MAME_BUS_ISA_DCB_H +#define MAME_BUS_ISA_DCB_H + +#pragma once + +#include "isa.h" +#include "cpu/i86/i186.h" +#include "machine/eepromser.h" + +class novell_dcb_device : public device_t, public device_isa16_card_interface +{ +public: + novell_dcb_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: + void eeprom_w(u8 data); + u8 misc_r(); + + void mem_map(address_map &map); + void io_map(address_map &map); + + required_device<i80188_cpu_device> m_localcpu; + required_device<eeprom_serial_93cxx_device> m_eeprom; +}; + +DECLARE_DEVICE_TYPE(NOVELL_DCB, novell_dcb_device) + +#endif // MAME_BUS_ISA_DCB_H diff --git a/src/devices/bus/isa/isa_cards.cpp b/src/devices/bus/isa/isa_cards.cpp index 77dc3513e15..97d676cd3e7 100644 --- a/src/devices/bus/isa/isa_cards.cpp +++ b/src/devices/bus/isa/isa_cards.cpp @@ -40,6 +40,7 @@ #include "lbaenhancer.h" #include "cl_sh260.h" #include "bt54x.h" +#include "dcb.h" // sound #include "adlib.h" @@ -183,4 +184,5 @@ void pc_isa16_cards(device_slot_interface &device) device.option_add("ev346", EV346); device.option_add("jc1310", JC1310); device.option_add("bt545s", BT545S); + device.option_add("dcb", NOVELL_DCB); } |