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Diffstat (limited to 'src/devices/bus/archimedes/podule/midimax.cpp')
-rw-r--r--src/devices/bus/archimedes/podule/midimax.cpp132
1 files changed, 132 insertions, 0 deletions
diff --git a/src/devices/bus/archimedes/podule/midimax.cpp b/src/devices/bus/archimedes/podule/midimax.cpp
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+++ b/src/devices/bus/archimedes/podule/midimax.cpp
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+// license:BSD-3-Clause
+// copyright-holders:Nigel Barnes
+/**********************************************************************
+
+ Wild Vision MidiMax
+
+ http://chrisacorns.computinghistory.org.uk/32bit_UpgradesH2Z/WildVision_MidiMax.html
+
+**********************************************************************/
+
+#include "emu.h"
+#include "midimax.h"
+#include "machine/ins8250.h"
+#include "bus/midi/midi.h"
+
+
+namespace {
+
+class arc_midimax_device :
+ public device_t,
+ public device_archimedes_podule_interface
+{
+public:
+ // construction/destruction
+ arc_midimax_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ // optional information overrides
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual const tiny_rom_entry *device_rom_region() const override;
+
+ // device_archimedes_podule_interface overrides
+ virtual void ioc_map(address_map &map) override;
+
+private:
+ required_memory_region m_podule_rom;
+
+ u8 m_rom_page;
+};
+
+
+void arc_midimax_device::ioc_map(address_map &map)
+{
+ map(0x0000, 0x1fff).lr8(NAME([this](offs_t offset) { return m_podule_rom->base()[offset | ((m_rom_page << 11) & 0xf800)]; })).umask32(0x000000ff);
+ map(0x2000, 0x2000).lw8(NAME([this](u8 data) { m_rom_page = data; }));
+ map(0x3000, 0x301f).rw("uart", FUNC(ns16550_device::ins8250_r), FUNC(ns16550_device::ins8250_w)).umask32(0x000000ff);
+}
+
+
+//-------------------------------------------------
+// ROM( midimax )
+//-------------------------------------------------
+
+ROM_START( midimax )
+ ROM_REGION(0x10000, "podule_rom", 0)
+ ROM_LOAD("midimax.rom", 0x0000, 0x10000, CRC(62d8a431) SHA1(8c291082d9e8a8533a4f3b59da857813aa357ecb))
+ROM_END
+
+const tiny_rom_entry *arc_midimax_device::device_rom_region() const
+{
+ return ROM_NAME( midimax );
+}
+
+
+//-------------------------------------------------
+// device_add_mconfig - add device configuration
+//-------------------------------------------------
+
+void arc_midimax_device::device_add_mconfig(machine_config &config)
+{
+ ns16550_device &uart(NS16550(config, "uart", DERIVED_CLOCK(1, 4))); // TODO: verify clock
+ uart.out_tx_callback().set("mdout1", FUNC(midi_port_device::write_txd));
+ uart.out_tx_callback().append("mdout2", FUNC(midi_port_device::write_txd));
+ uart.out_tx_callback().append("mdthru", FUNC(midi_port_device::write_txd));
+ uart.out_int_callback().set([this](int state) { set_pirq(state); });
+
+ midiout_slot(MIDI_PORT(config, "mdthru"));
+ midiout_slot(MIDI_PORT(config, "mdout1"));
+ midiout_slot(MIDI_PORT(config, "mdout2"));
+ midi_port_device &mdin(MIDI_PORT(config, "mdin", midiin_slot, "midiin"));
+ mdin.rxd_handler().set("uart", FUNC(ns16550_device::rx_w));
+ mdin.rxd_handler().append("mdthru", FUNC(midi_port_device::write_txd));
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// arc_midimax_device - constructor
+//-------------------------------------------------
+
+arc_midimax_device::arc_midimax_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : device_t(mconfig, ARC_MIDIMAX, tag, owner, clock)
+ , device_archimedes_podule_interface(mconfig, *this)
+ , m_podule_rom(*this, "podule_rom")
+ , m_rom_page(0)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void arc_midimax_device::device_start()
+{
+ save_item(NAME(m_rom_page));
+}
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void arc_midimax_device::device_reset()
+{
+ m_rom_page = 0x00;
+}
+
+} // anonymous namespace
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE_PRIVATE(ARC_MIDIMAX, device_archimedes_podule_interface, arc_midimax_device, "arc_midimax", "Wild Vision MidiMax")