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Diffstat (limited to 'src/devices/bus/archimedes/podule/laserd.cpp')
-rw-r--r--src/devices/bus/archimedes/podule/laserd.cpp169
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diff --git a/src/devices/bus/archimedes/podule/laserd.cpp b/src/devices/bus/archimedes/podule/laserd.cpp
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+// license:BSD-3-Clause
+// copyright-holders:Nigel Barnes
+/**********************************************************************
+
+ Computer Concepts LaserDirect
+
+ http://chrisacorns.computinghistory.org.uk/32bit_UpgradesA2G/CC_LaserDirect.html
+
+ TODO:
+ - everything, this is skeleton with ROM.
+
+**********************************************************************/
+
+#include "emu.h"
+#include "laserd.h"
+#include "machine/7200fifo.h"
+#include "bus/centronics/ctronics.h"
+
+
+namespace {
+
+class arc_laserd_device :
+ public device_t,
+ public device_archimedes_podule_interface
+{
+public:
+ static constexpr feature_type unemulated_features() { return feature::PRINTER; }
+
+protected:
+ arc_laserd_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock);
+
+ // 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;
+
+ // device_archimedes_podule_interface overrides
+ virtual void ioc_map(address_map &map) override;
+ virtual void memc_map(address_map &map) override;
+
+private:
+ required_memory_region m_podule_rom;
+
+ u8 m_rom_page;
+};
+
+
+// ======================> arc_lbp4_device
+
+class arc_lbp4_device : public arc_laserd_device
+{
+public:
+ // construction/destruction
+ arc_lbp4_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+protected:
+ // optional information overrides
+ virtual const tiny_rom_entry *device_rom_region() const override;
+};
+
+
+void arc_laserd_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) & 0x7800)]; })).umask32(0x000000ff);
+ map(0x0000, 0x3fff).lw8(NAME([this](u8 data) { m_rom_page = data ^ 0xff; })).umask32(0x000000ff);
+}
+
+void arc_laserd_device::memc_map(address_map &map)
+{
+ //map(0x0000, 0x0003).r("fifo0", FUNC(fifo7200_device::data_word_r)).umask32(0x0000ffff);
+ //map(0x0000, 0x0003).w("cent_data_out", FUNC(output_latch_device::write)).umask32(0x000000ff);
+ map(0x0004, 0x0007).r("cent_status_in", FUNC(input_buffer_device::read)).umask32(0x000000ff);
+ map(0x0004, 0x0007).w("cent_ctrl_out", FUNC(output_latch_device::write)).umask32(0x000000ff);
+}
+
+
+//-------------------------------------------------
+// ROM( lbp4 )
+//-------------------------------------------------
+
+ROM_START( lbp4 )
+ ROM_REGION(0x8000, "podule_rom", 0)
+ ROM_LOAD("lbp-4.rom", 0x0000, 0x8000, CRC(f21b8089) SHA1(07503fa6d29d34cc4ceb972296c9bd178085e412))
+ROM_END
+
+const tiny_rom_entry *arc_lbp4_device::device_rom_region() const
+{
+ return ROM_NAME( lbp4 );
+}
+
+
+//-------------------------------------------------
+// device_add_mconfig - add device configuration
+//-------------------------------------------------
+
+void arc_laserd_device::device_add_mconfig(machine_config &config)
+{
+ IDT7201(config, "fifo0");
+ IDT7201(config, "fifo1");
+
+ centronics_device &centronics(CENTRONICS(config, "printer", centronics_devices, "printer"));
+ centronics.ack_handler().set("cent_status_in", FUNC(input_buffer_device::write_bit5));
+ centronics.busy_handler().set("cent_status_in", FUNC(input_buffer_device::write_bit1));
+ centronics.perror_handler().set("cent_status_in", FUNC(input_buffer_device::write_bit4));
+ centronics.select_handler().set("cent_status_in", FUNC(input_buffer_device::write_bit3));
+ centronics.fault_handler().set("cent_status_in", FUNC(input_buffer_device::write_bit6));
+
+ output_latch_device &cent_data_out(OUTPUT_LATCH(config, "cent_data_out"));
+ centronics.set_output_latch(cent_data_out);
+
+ INPUT_BUFFER(config, "cent_status_in");
+
+ output_latch_device &cent_ctrl_out(OUTPUT_LATCH(config, "cent_ctrl_out"));
+ cent_ctrl_out.bit_handler<4>().set(centronics, FUNC(centronics_device::write_strobe));
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// arc_laserd_device - constructor
+//-------------------------------------------------
+
+arc_laserd_device::arc_laserd_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock)
+ : device_t(mconfig, type, tag, owner, clock)
+ , device_archimedes_podule_interface(mconfig, *this)
+ , m_podule_rom(*this, "podule_rom")
+ , m_rom_page(0)
+{
+}
+
+arc_lbp4_device::arc_lbp4_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : arc_laserd_device(mconfig, ARC_LBP4, tag, owner, clock)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void arc_laserd_device::device_start()
+{
+ save_item(NAME(m_rom_page));
+}
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void arc_laserd_device::device_reset()
+{
+ m_rom_page = 0xff;
+}
+
+} // anonymous namespace
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE_PRIVATE(ARC_LBP4, device_archimedes_podule_interface, arc_lbp4_device, "arc_lbp4", "Computer Concepts LaserDirect (Canon LBP-4)")
+//DEFINE_DEVICE_TYPE_PRIVATE(ARC_LBP8, device_archimedes_podule_interface, arc_lbp8_device, "arc_lbp8", "Computer Concepts LaserDirect (Canon LBP-8)")
+//DEFINE_DEVICE_TYPE_PRIVATE(ARC_QUME, device_archimedes_podule_interface, arc_qume_device, "arc_qume", "Computer Concepts LaserDirect (Qume)")