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-rw-r--r--src/devices/bus/econet/econet.h165
1 files changed, 165 insertions, 0 deletions
diff --git a/src/devices/bus/econet/econet.h b/src/devices/bus/econet/econet.h
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index 00000000000..e072c7bb43b
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+++ b/src/devices/bus/econet/econet.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Acorn Computers Econet local area network emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __ECONET__
+#define __ECONET__
+
+#include "emu.h"
+
+
+
+//**************************************************************************
+// MACROS / CONSTANTS
+//**************************************************************************
+
+#define ECONET_TAG "econet"
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_ECONET_ADD() \
+ MCFG_DEVICE_ADD(ECONET_TAG, ECONET, 0)
+
+#define MCFG_ECONET_SLOT_ADD(_tag, _num, _slot_intf, _def_slot) \
+ MCFG_DEVICE_ADD(_tag, ECONET_SLOT, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) \
+ econet_slot_device::static_set_slot(*device, _num);
+
+
+#define MCFG_ECONET_CLK_CALLBACK(_write) \
+ devcb = &econet_device::set_clk_wr_callback(*device, DEVCB_##_write);
+
+#define MCFG_ECONET_DATA_CALLBACK(_write) \
+ devcb = &econet_device::set_data_wr_callback(*device, DEVCB_##_write);
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> econet_device
+
+class device_econet_interface;
+
+class econet_device : public device_t
+{
+public:
+ // construction/destruction
+ econet_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ template<class _Object> static devcb_base &set_clk_wr_callback(device_t &device, _Object object) { return downcast<econet_device &>(device).m_write_clk.set_callback(object); }
+ template<class _Object> static devcb_base &set_data_wr_callback(device_t &device, _Object object) { return downcast<econet_device &>(device).m_write_data.set_callback(object); }
+
+ void add_device(device_t *target, int address);
+
+ // writes for host (driver_device)
+ DECLARE_WRITE_LINE_MEMBER( clk_w );
+ DECLARE_WRITE_LINE_MEMBER( data_w );
+
+ // writes for peripherals (device_t)
+ void clk_w(device_t *device, int state);
+ void data_w(device_t *device, int state);
+
+protected:
+ enum
+ {
+ CLK = 0,
+ DATA,
+ SIGNAL_COUNT
+ };
+
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_stop();
+
+ class daisy_entry
+ {
+ public:
+ daisy_entry(device_t *device);
+ daisy_entry *next() const { return m_next; }
+
+ daisy_entry * m_next; // next device
+ device_t * m_device; // associated device
+ device_econet_interface * m_interface; // associated device's daisy interface
+
+ int m_line[SIGNAL_COUNT];
+ };
+
+ simple_list<daisy_entry> m_device_list;
+
+private:
+ devcb_write_line m_write_clk;
+ devcb_write_line m_write_data;
+
+ inline void set_signal(device_t *device, int signal, int state);
+ inline int get_signal(int signal);
+
+ int m_line[SIGNAL_COUNT];
+};
+
+
+// ======================> econet_slot_device
+
+class econet_slot_device : public device_t,
+ public device_slot_interface
+{
+public:
+ // construction/destruction
+ econet_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // device-level overrides
+ virtual void device_start();
+
+ // inline configuration
+ static void static_set_slot(device_t &device, int address);
+
+private:
+ // configuration
+ UINT8 m_address;
+ econet_device *m_econet;
+};
+
+
+// ======================> device_econet_interface
+
+class device_econet_interface : public device_slot_card_interface
+{
+ friend class econet_device;
+
+public:
+ // construction/destruction
+ device_econet_interface(const machine_config &mconfig, device_t &device);
+ virtual ~device_econet_interface() { }
+
+ device_econet_interface *next() const { return m_next; }
+ device_econet_interface *m_next;
+
+ virtual void econet_clk(int state) = 0;
+ virtual void econet_data(int state) = 0;
+
+ econet_device *m_econet;
+ UINT8 m_address;
+};
+
+
+// device type definition
+extern const device_type ECONET;
+extern const device_type ECONET_SLOT;
+
+
+SLOT_INTERFACE_EXTERN( econet_devices );
+
+
+
+#endif