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-rw-r--r--src/devices/bus/bml3/rtc.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/src/devices/bus/bml3/rtc.h b/src/devices/bus/bml3/rtc.h
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+++ b/src/devices/bus/bml3/rtc.h
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+// license:GPL-2.0+
+// copyright-holders:Russell Bull
+/*********************************************************************
+
+ rtc.h
+
+ Hitachi RTC card for the MB-6890
+
+*********************************************************************/
+
+#ifndef MAME_BUS_BML3_RTC_H
+#define MAME_BUS_BML3_RTC_H
+
+#pragma once
+
+#include "bml3bus.h"
+#include "machine/msm5832.h"
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class bml3bus_rtc_device:
+ public device_t,
+ public device_bml3bus_card_interface
+{
+public:
+ // construction/destruction
+ bml3bus_rtc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ uint8_t read(offs_t offset);
+ void write(offs_t offset, uint8_t data);
+
+protected:
+ // device-level overrides
+ virtual void device_start() override ATTR_COLD;
+
+ // optional information overrides
+ virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
+
+ virtual void map_io(address_space_installer &space) override;
+
+private:
+ required_device<msm5832_device> m_rtc;
+
+ uint8_t m_addr_latch;
+ uint8_t m_data_latch;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(BML3BUS_RTC, bml3bus_rtc_device)
+
+#endif // MAME_BUS_BML3_RTC_H