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Diffstat (limited to 'src/devices/bus/archimedes/podule/eaglem2.cpp')
-rw-r--r-- | src/devices/bus/archimedes/podule/eaglem2.cpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/devices/bus/archimedes/podule/eaglem2.cpp b/src/devices/bus/archimedes/podule/eaglem2.cpp new file mode 100644 index 00000000000..5180f724208 --- /dev/null +++ b/src/devices/bus/archimedes/podule/eaglem2.cpp @@ -0,0 +1,156 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +/********************************************************************** + + Wild Vision/Computer Concepts Eagle M2 + + http://chrisacorns.computinghistory.org.uk/32bit_UpgradesA2G/CC_Eagle.html + + Main components: + - Am7202A x 2 High Density First-In First-Out + - M514221B x 4 + - SAA7191B Digital Multistandard ColourDecoder + - SAA7186 Digital video scaler + - SAA7197 Clock Generator Circuit + - TDA8708B Video analog input interface + - TDA8709A Video analog input interface + - YMZ263B Multimedia Audio & Game Interface Controller + + TODO: + - everything, it's complex and not documented. + +**********************************************************************/ + +#include "emu.h" +#include "eaglem2.h" +#include "machine/7200fifo.h" +#include "machine/saa7191.h" +#include "bus/midi/midi.h" +#include "imagedev/avivideo.h" +#include "speaker.h" + + +namespace { + +class arc_eaglem2_device : + public device_t, + public device_archimedes_podule_interface +{ +public: + // construction/destruction + arc_eaglem2_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + + static constexpr feature_type unemulated_features() { return feature::CAPTURE | feature::SOUND; } + +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; + required_device<saa7191_device> m_dmsd; + required_device<idt7202_device> m_fifo_in; + required_device<idt7202_device> m_fifo_out; + required_device<avivideo_image_device> m_avivideo; + + u8 m_rom_page; +}; + + +void arc_eaglem2_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) & 0x1f800)]; })).umask32(0x000000ff); + map(0x2000, 0x2000).lw8(NAME([this](u8 data) { m_rom_page = data; })); +} + + +//------------------------------------------------- +// ROM( eagle ) +//------------------------------------------------- + +ROM_START( eagle ) + ROM_REGION(0x20000, "podule_rom", 0) + ROM_LOAD("eagle.rom", 0x0000, 0x20000, CRC(9d9fa2e9) SHA1(b3633b8e1d58f59f5894d14a737c69b6d9d5d46d)) +ROM_END + +const tiny_rom_entry *arc_eaglem2_device::device_rom_region() const +{ + return ROM_NAME( eagle ); +} + + +//------------------------------------------------- +// device_add_mconfig - add device configuration +//------------------------------------------------- + +void arc_eaglem2_device::device_add_mconfig(machine_config &config) +{ + SAA7191(config, m_dmsd); + + IDT7202(config, m_fifo_in); // AM7202A + IDT7202(config, m_fifo_out); // AM7202A + + IMAGE_AVIVIDEO(config, m_avivideo); + + midi_port_device &mdin(MIDI_PORT(config, "mdin", midiin_slot, "midiin")); + mdin.rxd_handler().set("mdthru", FUNC(midi_port_device::write_txd)); + midiout_slot(MIDI_PORT(config, "mdout")); + midiout_slot(MIDI_PORT(config, "mdthru")); +} + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// arc_eaglem2_device - constructor +//------------------------------------------------- + +arc_eaglem2_device::arc_eaglem2_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, ARC_EAGLEM2, tag, owner, clock) + , device_archimedes_podule_interface(mconfig, *this) + , m_podule_rom(*this, "podule_rom") + , m_dmsd(*this, "dmsd") + , m_fifo_in(*this, "fifo_in") + , m_fifo_out(*this, "fifo_out") + , m_avivideo(*this, "srcavi") + , m_rom_page(0) +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void arc_eaglem2_device::device_start() +{ + save_item(NAME(m_rom_page)); +} + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void arc_eaglem2_device::device_reset() +{ + m_rom_page = 0x00; +} + +} // anonymous namespace + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +DEFINE_DEVICE_TYPE_PRIVATE(ARC_EAGLEM2, device_archimedes_podule_interface, arc_eaglem2_device, "arc_eaglem2", "Wild Vision/Computer Concepts Eagle M2") |