/*************************************************************************** nubus.h - NuBus bus and card emulation by R. Belmont, based heavily on Miodrag Milanovic's ISA8/16 implementation ***************************************************************************/ #pragma once #ifndef __NUBUS_H__ #define __NUBUS_H__ #include "emu.h" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_NUBUS_BUS_ADD(_tag, _cputag, _config) \ MCFG_DEVICE_ADD(_tag, NUBUS, 0) \ MCFG_DEVICE_CONFIG(_config) \ nubus_device::static_set_cputag(*device, _cputag); \ #define MCFG_NUBUS_SLOT_ADD(_nbtag, _tag, _slot_intf, _def_slot, _def_inp) \ MCFG_DEVICE_ADD(_tag, NUBUS_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, _def_inp, false) \ nubus_slot_device::static_set_nubus_slot(*device, _nbtag, _tag); \ #define MCFG_NUBUS_SLOT_REMOVE(_tag) \ MCFG_DEVICE_REMOVE(_tag) #define MCFG_NUBUS_ONBOARD_ADD(_nbtag, _tag, _dev_type, _def_inp) \ MCFG_DEVICE_ADD(_tag, _dev_type, 0) \ MCFG_DEVICE_INPUT_DEFAULTS(_def_inp) \ device_nubus_card_interface::static_set_nubus_tag(*device, _nbtag, _tag); #define MCFG_NUBUS_BUS_REMOVE(_tag) \ MCFG_DEVICE_REMOVE(_tag) //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class nubus_device; class nubus_slot_device : public device_t, public device_slot_interface { public: // construction/destruction nubus_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); nubus_slot_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock); // device-level overrides virtual void device_start(); // inline configuration static void static_set_nubus_slot(device_t &device, const char *tag, const char *slottag); protected: // configuration const char *m_nubus_tag, *m_nubus_slottag; }; // device type definition extern const device_type NUBUS_SLOT; // ======================> nbbus_interface struct nbbus_interface { devcb_write_line m_out_irq9_cb; devcb_write_line m_out_irqa_cb; devcb_write_line m_out_irqb_cb; devcb_write_line m_out_irqc_cb; devcb_write_line m_out_irqd_cb; devcb_write_line m_out_irqe_cb; }; class device_nubus_card_interface; // ======================> nubus_device class nubus_device : public device_t, public nbbus_interface { public: // construction/destruction nubus_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); nubus_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock); // inline configuration static void static_set_cputag(device_t &device, const char *tag); void add_nubus_card(device_nubus_card_interface *card); void install_device(offs_t start, offs_t end, read8_delegate rhandler, write8_delegate whandler, UINT32 mask=0xffffffff); void install_device(offs_t start, offs_t end, read16_delegate rhandler, write16_delegate whandler, UINT32 mask=0xffffffff); void install_device(offs_t start, offs_t end, read32_delegate rhandler, write32_delegate whandler, UINT32 mask=0xffffffff); void install_readonly_device(offs_t start, offs_t end, read32_delegate rhandler, UINT32 mask=0xffffffff); void install_writeonly_device(offs_t start, offs_t end, write32_delegate whandler, UINT32 mask=0xffffffff); void install_bank(offs_t start, offs_t end, offs_t mask, offs_t mirror, const char *tag, UINT8 *data); void set_irq_line(int slot, int state); DECLARE_WRITE_LINE_MEMBER( irq9_w ); DECLARE_WRITE_LINE_MEMBER( irqa_w ); DECLARE_WRITE_LINE_MEMBER( irqb_w ); DECLARE_WRITE_LINE_MEMBER( irqc_w ); DECLARE_WRITE_LINE_MEMBER( irqd_w ); DECLARE_WRITE_LINE_MEMBER( irqe_w ); protected: // device-level overrides virtual void device_start(); virtual void device_reset(); virtual void device_config_complete(); // internal state cpu_device *m_maincpu; devcb_resolved_write_line m_out_irq9_func; devcb_resolved_write_line m_out_irqa_func; devcb_resolved_write_line m_out_irqb_func; devcb_resolved_write_line m_out_irqc_func; devcb_resolved_write_line m_out_irqd_func; devcb_resolved_write_line m_out_irqe_func; simple_list m_device_list; const char *m_cputag; }; // device type definition extern const device_type NUBUS; // ======================> device_nubus_card_interface // class representing interface-specific live nubus card class device_nubus_card_interface : public device_slot_card_interface { friend class nubus_device; public: // construction/destruction device_nubus_card_interface(const machine_config &mconfig, device_t &device); virtual ~device_nubus_card_interface(); device_nubus_card_interface *next() const { return m_next; } void set_nubus_device(); // helper functions for card devices void install_declaration_rom(device_t *dev, const char *romregion, bool mirror_all_mb = false, bool reverse_rom = false); void install_bank(offs_t start, offs_t end, offs_t mask, offs_t mirror, const char *tag, UINT8 *data); UINT32 get_slotspace() { return 0xf0000000 | (m_slot<<24); } UINT32 get_super_slotspace() { return m_slot<<28; } void raise_slot_irq() { m_nubus->set_irq_line(m_slot, ASSERT_LINE); } void lower_slot_irq() { m_nubus->set_irq_line(m_slot, CLEAR_LINE); } // inline configuration static void static_set_nubus_tag(device_t &device, const char *tag, const char *slottag); public: nubus_device *m_nubus; const char *m_nubus_tag, *m_nubus_slottag; int m_slot; device_nubus_card_interface *m_next; }; #endif /* __NUBUS_H__ */