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Diffstat (limited to 'src/devices/bus/vtech/ioexp/ioexp.h')
-rw-r--r--src/devices/bus/vtech/ioexp/ioexp.h39
1 files changed, 33 insertions, 6 deletions
diff --git a/src/devices/bus/vtech/ioexp/ioexp.h b/src/devices/bus/vtech/ioexp/ioexp.h
index 354d9fc46a2..c851d0e0d48 100644
--- a/src/devices/bus/vtech/ioexp/ioexp.h
+++ b/src/devices/bus/vtech/ioexp/ioexp.h
@@ -1,5 +1,5 @@
-// license:GPL-2.0+
-// copyright-holders:Dirk Best
+// license: GPL-2.0+
+// copyright-holders: Dirk Best
/***************************************************************************
VTech Laser/VZ I/O Expansion Slot
@@ -29,9 +29,12 @@
#pragma once
+#include "machine/bankdev.h"
+
// include here so drivers don't need to
#include "carts.h"
+
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
@@ -54,13 +57,16 @@ public:
vtech_ioexp_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual ~vtech_ioexp_slot_device();
- template <typename T> void set_io_space(T &&tag, int spacenum) { m_io.set_tag(std::forward<T>(tag), spacenum); }
+ template <typename T> void set_iospace(T &&tag, int spacenum) { m_iospace.set_tag(std::forward<T>(tag), spacenum); }
protected:
// device-level overrides
virtual void device_start() override;
- required_address_space m_io;
+private:
+ required_address_space m_iospace;
+
+ device_vtech_ioexp_interface *m_module;
};
// class representing interface-specific live ioexp device
@@ -70,14 +76,35 @@ public:
// construction/destruction
virtual ~device_vtech_ioexp_interface();
+ virtual uint8_t iorq_r(offs_t offset) { return 0xff; }
+ virtual void iorq_w(offs_t offset, uint8_t data) { }
+
protected:
device_vtech_ioexp_interface(const machine_config &mconfig, device_t &device);
- address_space &io_space() { return *m_slot->m_io; }
-
vtech_ioexp_slot_device *m_slot;
};
+// base io expansion device
+class vtech_ioexp_device : public device_t, public device_vtech_ioexp_interface
+{
+public:
+ // construction/destruction
+ vtech_ioexp_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
+
+ // from host
+ virtual uint8_t iorq_r(offs_t offset) override;
+ virtual void iorq_w(offs_t offset, uint8_t data) override;
+
+protected:
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual void device_start() override;
+
+ virtual void io_map(address_map &map) { }
+
+ required_device<address_map_bank_device> m_io;
+};
+
// device type definition
DECLARE_DEVICE_TYPE(VTECH_IOEXP_SLOT, vtech_ioexp_slot_device)