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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
// Generic Thomson TO*/MO* extension slot
#ifndef MAME_BUS_THOMSON_EXTENSION_H
#define MAME_BUS_THOMSON_EXTENSION_H
class thomson_extension_device;
class thomson_extension_interface : public device_interface
{
public:
thomson_extension_interface(const machine_config &mconfig, device_t &device);
virtual ~thomson_extension_interface() = default;
// 0x7c0 window at e000 on TO* and a000 on MO*
virtual void rom_map(address_map &map) = 0;
// 0x40 window at e7c0 on TO* and a7c0 on MO*
virtual void io_map(address_map &map) = 0;
protected:
void firq_w(int state);
void irq_w(int state);
private:
thomson_extension_device *const m_ext;
};
class thomson_extension_device : public device_t, public device_single_card_slot_interface<thomson_extension_interface>
{
friend class thomson_extension_interface;
public:
thomson_extension_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual ~thomson_extension_device() = default;
auto firq_callback() { return m_firq_callback.bind(); }
auto irq_callback() { return m_irq_callback.bind(); }
void rom_map(address_space_installer &space, offs_t start, offs_t end);
void io_map(address_space_installer &space, offs_t start, offs_t end);
protected:
virtual void device_resolve_objects() override;
virtual void device_start() override;
devcb_write_line m_firq_callback;
devcb_write_line m_irq_callback;
};
DECLARE_DEVICE_TYPE(THOMSON_EXTENSION, thomson_extension_device)
#endif
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