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// license:BSD-3-Clause
// copyright-holders:Brian Johnson
/*******************************************************************
*
* IDE Compact Flash Adapter
*
* This implements a Compact flash adapter expansion card for QX-10
* systems. The boot disk necessary to support this card is listed below.
*
* Disk Image: https://github.com/brijohn/qx10/raw/master/diskimages/qx10cf.imd
* Board Design: https://github.com/brijohn/qx10/tree/master/kicad/cf_adapter
*
*******************************************************************/
#include "emu.h"
#include "ide.h"
//**************************************************************************
// EPSON IDE DEVICE
//**************************************************************************
DEFINE_DEVICE_TYPE(EPSON_QX_OPTION_IDE, bus::epson_qx::ide_device, "epson_qx_option_ide", "Epson QX-10 Compact Flash Adapter")
namespace bus::epson_qx {
static INPUT_PORTS_START( ide )
PORT_START("IOBASE")
PORT_CONFNAME(0xf0, 0xd0, "IO Base Address Selection")
PORT_CONFSETTING(0x80, "&80")
PORT_CONFSETTING(0x90, "&90")
PORT_CONFSETTING(0xa0, "&A0")
PORT_CONFSETTING(0xb0, "&B0")
PORT_CONFSETTING(0xc0, "&C0")
PORT_CONFSETTING(0xd0, "&D0")
PORT_CONFSETTING(0xe0, "&E0")
PORT_CONFSETTING(0xf0, "&F0")
INPUT_PORTS_END
//-------------------------------------------------
// ide_device - constructor
//-------------------------------------------------
ide_device::ide_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
ide_hdd_device_base(mconfig, EPSON_QX_OPTION_IDE, tag, owner, clock),
device_option_expansion_interface(mconfig, *this),
m_iobase(*this, "IOBASE"),
m_installed(false)
{
}
//-------------------------------------------------
// device_input_ports - device-specific ports
//-------------------------------------------------
ioport_constructor ide_device::device_input_ports() const
{
return INPUT_PORTS_NAME( ide );
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void ide_device::device_start()
{
ide_hdd_device_base::device_start();
m_installed = false;
save_item(NAME(m_installed));
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void ide_device::device_reset()
{
ide_hdd_device_base::device_reset();
if (!m_installed) {
address_space &space = m_bus->iospace();
offs_t iobase = m_iobase->read() & 0xf0;
space.install_device(iobase, iobase+0x0f, *this, &ide_device::map);
m_installed = true;
}
}
uint8_t ide_device::read(offs_t offset)
{
if (offset < 8) {
return command_r(offset);
} else if (offset == 14 || offset == 15) {
return control_r(offset & 7);
}
return 0xff;
}
void ide_device::write(offs_t offset, uint8_t data)
{
if (offset < 8) {
command_w(offset, data);
} else if (offset == 14) {
control_w(offset & 7, data);
}
}
void ide_device::map(address_map &map)
{
map(0x00, 0x0f).rw(FUNC(ide_device::read), FUNC(ide_device::write));
}
} // namespace bus::epson_qx
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