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Diffstat (limited to 'src/emu/bus/nubus/nubus.h')
-rw-r--r-- | src/emu/bus/nubus/nubus.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/emu/bus/nubus/nubus.h b/src/emu/bus/nubus/nubus.h new file mode 100644 index 00000000000..d89eed80b79 --- /dev/null +++ b/src/emu/bus/nubus/nubus.h @@ -0,0 +1,165 @@ +/*************************************************************************** + + 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) \ + MCFG_DEVICE_ADD(_tag, NUBUS_SLOT, 0) \ + MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, 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, const char *shortname, const char *source); + + // 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, const char *shortname, const char *source); + // 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<device_nubus_card_interface> 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__ */ |