summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/z29_kbd/he191_3425.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/z29_kbd/he191_3425.h')
-rw-r--r--src/devices/bus/z29_kbd/he191_3425.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/src/devices/bus/z29_kbd/he191_3425.h b/src/devices/bus/z29_kbd/he191_3425.h
new file mode 100644
index 00000000000..9a9b94a6372
--- /dev/null
+++ b/src/devices/bus/z29_kbd/he191_3425.h
@@ -0,0 +1,58 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+
+#ifndef MAME_BUS_Z29_KBD_HE191_3425_H
+#define MAME_BUS_Z29_KBD_HE191_3425_H
+
+#pragma once
+
+#include "bus/z29_kbd/keyboard.h"
+#include "sound/beep.h"
+
+
+class he191_3425_device : public device_t, public device_z29_keyboard_interface
+{
+public:
+ // device type constructor
+ he191_3425_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+ // miscellanous handlers
+ void shift_reset(int state);
+
+protected:
+ // device-level overrides
+ virtual void device_resolve_objects() override;
+ virtual void device_start() override;
+ virtual ioport_constructor device_input_ports() const override;
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual const tiny_rom_entry *device_rom_region() const override;
+
+ // device_z29_keyboard_interface overrides
+ virtual void receive_data(bool state) override;
+
+private:
+ // MCU port handlers
+ u8 mcu_pa_r();
+ void mcu_pb_w(u8 data);
+ void mcu_pc_w(u8 data);
+ int mcu_t1_r();
+
+ // misc. helpers
+ TIMER_CALLBACK_MEMBER(receive_data_synced);
+
+ // object finders
+ required_device<cpu_device> m_mcu;
+ required_device<beep_device> m_buzzer;
+ required_ioport_array<12> m_matrix;
+ required_ioport m_modifiers;
+ output_finder<4> m_leds;
+
+ // internal state
+ u8 m_select;
+ bool m_recv_data;
+};
+
+// device type declaration
+DECLARE_DEVICE_TYPE(HE191_3425, he191_3425_device)
+
+#endif // MAME_BUS_Z29_KBD_HE191_3425_H