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Diffstat (limited to 'src/devices/bus/a2bus/a2midi.cpp')
-rw-r--r--src/devices/bus/a2bus/a2midi.cpp57
1 files changed, 49 insertions, 8 deletions
diff --git a/src/devices/bus/a2bus/a2midi.cpp b/src/devices/bus/a2bus/a2midi.cpp
index dfd6ce71694..ef19bd4e7e6 100644
--- a/src/devices/bus/a2bus/a2midi.cpp
+++ b/src/devices/bus/a2bus/a2midi.cpp
@@ -10,23 +10,55 @@
#include "emu.h"
#include "a2midi.h"
-#include "machine/clock.h"
+
#include "bus/midi/midi.h"
+#include "machine/6840ptm.h"
+#include "machine/6850acia.h"
+#include "machine/clock.h"
+namespace {
+
/***************************************************************************
PARAMETERS
***************************************************************************/
+#define MIDI_PTM_TAG "midi_ptm"
+#define MIDI_ACIA_TAG "midi_acia"
+
+
//**************************************************************************
-// GLOBAL VARIABLES
+// TYPE DEFINITIONS
//**************************************************************************
-DEFINE_DEVICE_TYPE(A2BUS_MIDI, a2bus_midi_device, "a2midi", "6850 MIDI card")
+class a2bus_midi_device:
+ public device_t,
+ public device_a2bus_card_interface
+{
+public:
+ // construction/destruction
+ a2bus_midi_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
-#define MIDI_PTM_TAG "midi_ptm"
-#define MIDI_ACIA_TAG "midi_acia"
+protected:
+ a2bus_midi_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
+ 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 uint8_t read_c0nx(uint8_t offset) override;
+ virtual void write_c0nx(uint8_t offset, uint8_t data) override;
+
+ required_device<ptm6840_device> m_ptm;
+ required_device<acia6850_device> m_acia;
+
+private:
+ void acia_irq_w(int state);
+ void ptm_irq_w(int state);
+ void write_acia_clock(int state);
+
+ bool m_acia_irq, m_ptm_irq;
+};
//-------------------------------------------------
// device_add_mconfig - add device configuration
@@ -117,7 +149,7 @@ void a2bus_midi_device::write_c0nx(uint8_t offset, uint8_t data)
}
}
-WRITE_LINE_MEMBER( a2bus_midi_device::acia_irq_w )
+void a2bus_midi_device::acia_irq_w(int state)
{
m_acia_irq = state ? true : false;
@@ -131,7 +163,7 @@ WRITE_LINE_MEMBER( a2bus_midi_device::acia_irq_w )
}
}
-WRITE_LINE_MEMBER( a2bus_midi_device::ptm_irq_w )
+void a2bus_midi_device::ptm_irq_w(int state)
{
m_acia_irq = state ? true : false;
@@ -145,8 +177,17 @@ WRITE_LINE_MEMBER( a2bus_midi_device::ptm_irq_w )
}
}
-WRITE_LINE_MEMBER( a2bus_midi_device::write_acia_clock )
+void a2bus_midi_device::write_acia_clock(int state)
{
m_acia->write_txc(state);
m_acia->write_rxc(state);
}
+
+} // anonymous namespace
+
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE_PRIVATE(A2BUS_MIDI, device_a2bus_card_interface, a2bus_midi_device, "a2midi", "6850 MIDI card")