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https://github.com/holub/mame
synced 2025-06-05 20:33:45 +03:00
bus/bbc/1mhzbus: Added the Torch Hard Disc Pack.
This commit is contained in:
Nigel Barnes
parent
d8b2021a22
commit
de637b8dbb
@ -512,6 +512,8 @@ if (BUSES["BBC_1MHZBUS"]~=null) then
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MAME_DIR .. "src/devices/bus/bbc/1mhzbus/pms64k.h",
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MAME_DIR .. "src/devices/bus/bbc/1mhzbus/ramdisc.cpp",
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MAME_DIR .. "src/devices/bus/bbc/1mhzbus/ramdisc.h",
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MAME_DIR .. "src/devices/bus/bbc/1mhzbus/sasi.cpp",
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MAME_DIR .. "src/devices/bus/bbc/1mhzbus/sasi.h",
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MAME_DIR .. "src/devices/bus/bbc/1mhzbus/scsi.cpp",
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MAME_DIR .. "src/devices/bus/bbc/1mhzbus/scsi.h",
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MAME_DIR .. "src/devices/bus/bbc/1mhzbus/sprite.cpp",
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@ -118,6 +118,7 @@ void bbc_1mhzbus_slot_device::jim_w(offs_t offset, uint8_t data)
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#include "ieee488.h"
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#include "m2000.h"
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//#include "m5000.h"
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#include "sasi.h"
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#include "scsi.h"
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#include "multiform.h"
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#include "opus3.h"
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@ -151,6 +152,7 @@ void bbc_1mhzbus_devices(device_slot_interface &device)
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device.option_add("pdram", BBC_PDRAM); /* Micro User Pull Down RAM */
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device.option_add("pms64k", BBC_PMS64K); /* PMS 64K Non-Volatile Ram Module */
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device.option_add("ramdisc", BBC_RAMDISC); /* Morley Electronics RAM Disc */
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device.option_add("torchhd", BBC_TORCHHD); /* Torch Hard Disc Pack */
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device.option_add("dc", BBC_DATACENTRE); /* RetroClinic DataCentre */
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//device.option_add("graduate", BBC_GRADUATE); /* Torch Graduate G400/G800 */
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device.option_add("beebopl", BBC_BEEBOPL); /* BeebOPL */
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@ -181,6 +183,7 @@ void bbcm_1mhzbus_devices(device_slot_interface &device)
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device.option_add("pdram", BBC_PDRAM); /* Micro User Pull Down RAM */
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device.option_add("pms64k", BBC_PMS64K); /* PMS 64K Non-Volatile Ram Module */
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device.option_add("ramdisc", BBC_RAMDISC); /* Morley Electronics RAM Disc */
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device.option_add("torchhd", BBC_TORCHHD); /* Torch Hard Disc Pack */
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device.option_add("dc", BBC_DATACENTRE); /* RetroClinic DataCentre */
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//device.option_add("graduate", BBC_GRADUATE); /* Torch Graduate G400/G800 */
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device.option_add("beebopl", BBC_BEEBOPL); /* BeebOPL */
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175
src/devices/bus/bbc/1mhzbus/sasi.cpp
Normal file
175
src/devices/bus/bbc/1mhzbus/sasi.cpp
Normal file
@ -0,0 +1,175 @@
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// license:BSD-3-Clause
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// copyright-holders:Nigel Barnes
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/**********************************************************************
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Torch SCSI Host Adaptor
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Circuit diagram: http://mdfs.net/Info/Comp/Torch/scsi1.gif
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http://mdfs.net/Docs/Comp/BBC/Hardware/TorchSCSI
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Supported by Hard Disc Utilities:
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Mb ss i c h s
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BASF 6188 11 256 9 360 4 32
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BASF 6185 20 256 9 440 6 32
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Mitsubishi MR522 19 256 9 612 4 32
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NEC D5126 19 256 9 615 4 32
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Rodime 200/10 10 256 9 320 4 32
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Rodime 200/20 20 256 9 320 8 32
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Rodime 202E 20 256 9 640 4 32
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Rodime 204E 40 256 9 640 8 32
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Vertex V130 23 256 9 987 5 32
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Vertex V150 38 256 9 987 5 32
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Vertex V170 53 256 9 987 7 32
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**********************************************************************/
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#include "emu.h"
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#include "sasi.h"
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#include "machine/nscsi_bus.h"
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#include "bus/nscsi/devices.h"
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//**************************************************************************
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// DEVICE DEFINITIONS
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//**************************************************************************
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DEFINE_DEVICE_TYPE(BBC_SASI, bbc_sasi_device, "bbc_sasi", "Torch SCSI Host Adaptor");
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DEFINE_DEVICE_TYPE(BBC_TORCHHD, bbc_torchhd_device, "bbc_torchhd", "Torch Hard Disc Pack");
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//-------------------------------------------------
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// device_add_mconfig - add device configuration
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//-------------------------------------------------
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void bbc_sasi_device::device_add_mconfig(machine_config& config)
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{
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NSCSI_BUS(config, "sasi");
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NSCSI_CONNECTOR(config, "sasi:0", default_scsi_devices, nullptr);
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NSCSI_CONNECTOR(config, "sasi:7", default_scsi_devices, "scsicb", true)
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.option_add_internal("scsicb", NSCSI_CB)
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.machine_config([this](device_t* device) {
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downcast<nscsi_callback_device&>(*device).req_callback().set(*this, FUNC(bbc_sasi_device::req_w));
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downcast<nscsi_callback_device&>(*device).sel_callback().set(*this, FUNC(bbc_sasi_device::sel_w));
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});
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}
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void bbc_torchhd_device::device_add_mconfig(machine_config &config)
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{
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bbc_sasi_device::device_add_mconfig(config);
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/* Xebec S1410 */
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subdevice<nscsi_connector>("sasi:0")->set_default_option("s1410");
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subdevice<nscsi_connector>("sasi:0")->set_fixed(true);
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// bbc_sasi_device - constructor
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//-------------------------------------------------
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bbc_sasi_device::bbc_sasi_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, type, tag, owner, clock)
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, device_bbc_1mhzbus_interface(mconfig, *this)
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, m_sasi(*this, "sasi:7:scsicb")
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, m_sel_state(0)
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{
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}
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bbc_sasi_device::bbc_sasi_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: bbc_sasi_device(mconfig, BBC_SASI, tag, owner, clock)
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{
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}
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bbc_torchhd_device::bbc_torchhd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: bbc_sasi_device(mconfig, BBC_TORCHHD, tag, owner, clock)
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void bbc_sasi_device::device_start()
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{
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/* register for save states */
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save_item(NAME(m_sel_state));
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void bbc_sasi_device::device_reset()
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{
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m_sasi->rst_w(1);
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m_sasi->rst_w(0);
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}
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//**************************************************************************
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// IMPLEMENTATION
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//**************************************************************************
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uint8_t bbc_sasi_device::jim_r(offs_t offset)
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{
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uint8_t data = 0xff;
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switch (offset)
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{
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case 0xf0:
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data = m_sasi->read();
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m_sasi->ack_w(1);
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break;
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case 0xf1:
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data = (m_sasi->req_r() << 0)
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| (m_sasi->ack_r() << 1)
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| (m_sasi->rst_r() << 2)
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| (!m_sel_state << 3)
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| (m_sasi->io_r() << 4)
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| (m_sasi->cd_r() << 5)
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| (m_sasi->msg_r() << 6)
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| (m_sasi->bsy_r() << 7);
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break;
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case 0xf2:
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m_sasi->ack_w(1);
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break;
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}
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return data;
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}
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void bbc_sasi_device::jim_w(offs_t offset, uint8_t data)
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{
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switch (offset)
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{
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case 0xf0:
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m_sasi->write(data);
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m_sasi->ack_w(1);
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break;
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case 0xf1:
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m_sasi->rst_w(1);
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m_sasi->rst_w(0);
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break;
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case 0xf2:
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m_sasi->sel_w(1);
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m_sel_state = 1;
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break;
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case 0xf3:
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m_sasi->sel_w(0);
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m_sel_state = 0;
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break;
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}
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}
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WRITE_LINE_MEMBER(bbc_sasi_device::req_w)
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{
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m_sasi->ack_w(0);
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}
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WRITE_LINE_MEMBER(bbc_sasi_device::sel_w)
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{
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m_sel_state = state;
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}
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73
src/devices/bus/bbc/1mhzbus/sasi.h
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73
src/devices/bus/bbc/1mhzbus/sasi.h
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@ -0,0 +1,73 @@
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// license:BSD-3-Clause
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// copyright-holders:Nigel Barnes
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/**********************************************************************
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Torch SCSI Host Adaptor
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**********************************************************************/
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#ifndef MAME_BUS_BBC_1MHZBUS_SASI_H
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#define MAME_BUS_BBC_1MHZBUS_SASI_H
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#include "1mhzbus.h"
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#include "machine/nscsi_cb.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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class bbc_sasi_device:
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public device_t,
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public device_bbc_1mhzbus_interface
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{
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public:
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// construction/destruction
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bbc_sasi_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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DECLARE_WRITE_LINE_MEMBER(req_w);
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DECLARE_WRITE_LINE_MEMBER(sel_w);
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protected:
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bbc_sasi_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
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// device-level overrides
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virtual void device_start() override;
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virtual void device_reset() override;
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// optional information overrides
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virtual void device_add_mconfig(machine_config& config) override;
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virtual uint8_t jim_r(offs_t offset) override;
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virtual void jim_w(offs_t offset, uint8_t data) override;
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private:
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required_device<nscsi_callback_device> m_sasi;
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int m_sel_state;
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};
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// ======================> bbc_torchhd_device
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class bbc_torchhd_device : public bbc_sasi_device
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{
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public:
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static constexpr feature_type imperfect_features() { return feature::DISK; }
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// construction/destruction
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bbc_torchhd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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protected:
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// optional information overrides
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virtual void device_add_mconfig(machine_config &config) override;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(BBC_SASI, bbc_sasi_device);
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DECLARE_DEVICE_TYPE(BBC_TORCHHD, bbc_torchhd_device);
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#endif /* MAME_BUS_BBC_1MHZBUS_SASI_H */
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