Skip to content

bk: add "Altpro" and "Samara" combo floppy/ATA controllers. #14419

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
+419 −5
Open

bk: add "Altpro" and "Samara" combo floppy/ATA controllers. #14419

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions scripts/src/bus.lua
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5002,10 +5002,14 @@ end

if (BUSES["QBUS"]~=null) then
files {
MAME_DIR .. "src/devices/bus/qbus/bk_altpro.cpp",
MAME_DIR .. "src/devices/bus/qbus/bk_altpro.h",
MAME_DIR .. "src/devices/bus/qbus/bk_irps.cpp",
MAME_DIR .. "src/devices/bus/qbus/bk_irps.h",
MAME_DIR .. "src/devices/bus/qbus/bk_kmd.cpp",
MAME_DIR .. "src/devices/bus/qbus/bk_kmd.h",
MAME_DIR .. "src/devices/bus/qbus/bk_samara.cpp",
MAME_DIR .. "src/devices/bus/qbus/bk_samara.h",
MAME_DIR .. "src/devices/bus/qbus/dsd4432.cpp",
MAME_DIR .. "src/devices/bus/qbus/dsd4432.h",
MAME_DIR .. "src/devices/bus/qbus/dvk_dwhle.cpp",
Expand Down
194 changes: 194 additions & 0 deletions src/devices/bus/qbus/bk_altpro.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,194 @@
// license:BSD-3-Clause
// copyright-holders:Sergey Svishchev
/***************************************************************************

BK "Altpro" combo floppy/ATA controller series

CSRs 177130, 177740. No vector.

Compatible with standard floppy controller. ATA port has software
support in ANDOS and MK-DOS.

Not implemented: memory expansion (SMK models).

***************************************************************************/

#include "emu.h"
#include "bk_altpro.h"

#include "bus/ata/ataintf.h"
#include "cpu/t11/t11.h"
#include "formats/bk0010_dsk.h"
#include "imagedev/harddriv.h"
#include "machine/1801vp128.h"


namespace {

ROM_START(bk_altpro)
ROM_REGION(0x1000, "maincpu", 0)
ROM_DEFAULT_BIOS("smk00")
ROM_SYSTEM_BIOS(0, "smk00", "SMK00 1.41")
ROMX_LOAD("disk_smk00_v1.41.rom", 0, 0x1000, CRC(cf41889f) SHA1(d34480e35a400316a1f0b6a9d2f3208f2ff2a6de), ROM_BIOS(0))
ROM_SYSTEM_BIOS(1, "smk64", "SMK64 2.05")
ROMX_LOAD("disk_smk64_v2.05.rom", 0, 0x1000, CRC(f5ac331d) SHA1(f14f54eb7a1f3327ceb7d6a30c484f6a0d5226ad), ROM_BIOS(1))
ROM_SYSTEM_BIOS(2, "smk512", "SMK512 2.05")
ROMX_LOAD("disk_smk512_v2.05.rom", 0, 0x1000, CRC(6ca562a7) SHA1(4796f373e343460b2c9acf769fd4ddfa46e6e90f), ROM_BIOS(2))
ROM_END

/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/

// ======================> bk_altpro_device

class bk_altpro_device : public device_t,
public device_qbus_card_interface
{
public:
// construction/destruction
bk_altpro_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

uint16_t ata_r(offs_t offset, uint16_t mem_mask = ~0);
void ata_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);

protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
virtual const tiny_rom_entry *device_rom_region() const override ATTR_COLD;

required_device<k1801vp128_device> m_fdc;
required_device<ata_interface_device> m_ata;

private:
static void floppy_formats(format_registration &fr);

bool odd;

std::unique_ptr<uint8_t[]> m_ram;
};



//**************************************************************************
// LIVE DEVICE
//**************************************************************************

//-------------------------------------------------
// bk_altpro_device - constructor
//-------------------------------------------------

bk_altpro_device::bk_altpro_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, BK_ALTPRO, tag, owner, clock)
, device_qbus_card_interface(mconfig, *this)
, m_fdc(*this, "fdc")
, m_ata(*this, "ata")
{
}

void bk_altpro_device::floppy_formats(format_registration &fr)
{
fr.add_mfm_containers();
fr.add(FLOPPY_BK0010_FORMAT);
}

static void bk_floppies(device_slot_interface &device)
{
device.option_add("525qd", FLOPPY_525_QD);
}

const tiny_rom_entry *bk_altpro_device::device_rom_region() const
{
return ROM_NAME(bk_altpro);
}

void bk_altpro_device::device_add_mconfig(machine_config &config)
{
K1801VP128(config, m_fdc, XTAL(4'000'000));
m_fdc->ds_in_callback().set([] (uint16_t data) {
switch (data & 15)
{
case 1: return 0;
case 2: return 1;
default: return -1;
}
});
FLOPPY_CONNECTOR(config, "fdc:0", bk_floppies, "525qd", bk_altpro_device::floppy_formats);
FLOPPY_CONNECTOR(config, "fdc:1", bk_floppies, "525qd", bk_altpro_device::floppy_formats);

ATA_INTERFACE(config, m_ata).options(ata_devices, "hdd", nullptr, false);
}


//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------

void bk_altpro_device::device_start()
{
m_ram = make_unique_clear<uint8_t[]>(4096);
m_bus->install_device(0177130, 0177133,
emu::rw_delegate(m_fdc, FUNC(k1801vp128_device::read)),
emu::rw_delegate(m_fdc, FUNC(k1801vp128_device::write))
);
m_bus->program_space().install_readwrite_handler(0177740, 0177757,
emu::rw_delegate(*this, FUNC(bk_altpro_device::ata_r)),
emu::rw_delegate(*this, FUNC(bk_altpro_device::ata_w)),
0, 0, t11_device::UNALIGNED_WORD
);
m_bus->program_space().install_rom(0160000, 0167777, memregion(this->subtag("maincpu").c_str())->base());
m_bus->program_space().unmap_write(0160000, 0167777);
m_bus->program_space().install_ram(0170000, 0176777, &m_ram[0]);
}

void bk_altpro_device::device_reset()
{
odd = false;
}

uint16_t bk_altpro_device::ata_r(offs_t offset, uint16_t mem_mask)
{
if (mem_mask == 0xff00) // unaligned access
{
odd = true;
return ((m_ata->cs1_r(7 - offset) << 8) ^ 0xffff);
}
else if (odd)
{
odd = false;
return 0;
}
else if (offset == 7)
return m_ata->cs0_r(7 - offset) ^ 0xffff;
else
return (m_ata->cs0_r(7 - offset) ^ 0xffff) & 0xff;
}

void bk_altpro_device::ata_w(offs_t offset, uint16_t data, uint16_t mem_mask)
{
if (mem_mask == 0xff00) // unaligned access
{
odd = true;
m_ata->cs1_w(7 - offset, ((data >> 8) ^ 0xffff) & 0xff);
}
else if (odd)
{
odd = false;
return;
}
else if (offset == 7)
m_ata->cs0_w(7 - offset, (data ^ 0xffff));
else
m_ata->cs0_w(7 - offset, (data ^ 0xffff) & 0xff);
}

} // anonymous namespace


//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************

DEFINE_DEVICE_TYPE_PRIVATE(BK_ALTPRO, device_qbus_card_interface, bk_altpro_device, "bk_altpro", "BK Altpro floppy/ATA")
19 changes: 19 additions & 0 deletions src/devices/bus/qbus/bk_altpro.h
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
// license:BSD-3-Clause
// copyright-holders:Sergey Svishchev
/***************************************************************************

BK "Altpro" combo floppy/ATA controller

***************************************************************************/

#ifndef MAME_BUS_QBUS_BK_ALTPRO_H
#define MAME_BUS_QBUS_BK_ALTPRO_H

#pragma once

#include "qbus.h"


DECLARE_DEVICE_TYPE(BK_ALTPRO, device_qbus_card_interface)

#endif
Loading
Loading