// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** ISA bus device 8 bit ISA bus connector: A1 O I/O CH CHK B1 GND A2 IO D7 B2 I RESET A3 IO D6 B3 +5V A4 IO D5 B4 O IRQ2 A5 IO D4 B5 -5V A6 IO D3 B6 O DRQ2 A7 IO D2 B7 -12V A8 IO D1 B8 O /NOWS A9 IO D0 B9 +12V A10 O I/O CH RDY B10 GND A11 I AEN B11 I /SMEMW A12 IO A19 B12 I /SMEMR A13 IO A18 B13 I /IOW A14 IO A17 B14 I /IOR A15 IO A16 B15 I /DACK3 A16 IO A15 B16 O DRQ3 A17 IO A14 B17 I /DACK1 A18 IO A13 B18 O DRQ1 A19 IO A12 B19 IO /REFRESH A20 IO A11 B20 I CLOCK A21 IO A10 B21 O IRQ7 A22 IO A9 B22 O IRQ6 A23 IO A8 B23 O IRQ5 A24 IO A7 B24 O IRQ4 A25 IO A6 B25 O IRQ3 A26 IO A5 B26 I /DACK2 A27 IO A4 B27 I T/C A28 IO A3 B28 I ALE A29 IO A2 B29 +5V A30 IO A1 B30 I OSC A31 IO A0 B31 GND 16 bit ISA bus extension C1 I SBHE D1 I /MEM CS 16 C2 IO A23 D2 I /I/O CS 16 C3 IO A22 D3 O IRQ10 C4 IO A21 D4 O IRQ11 C5 IO A20 D5 O IRQ12 C6 IO A19 D6 O IRQ15 C7 IO A18 D7 O IRQ14 C8 IO A17 D8 I /DACK0 C9 I /MEMR D9 O DRQ0 C10 I /MEMW D10 I /DACK5 C11 IO D8 D11 O DRQ5 C12 IO D9 D12 I /DACK6 C13 IO D10 D13 O DRQ6 C14 IO D11 D14 I /DACK7 C15 IO D12 D15 O DRQ7 C16 IO D13 D16 +5V C17 IO D14 D17 I MASTER C18 IO D15 D18 GND ***************************************************************************/ #pragma once #ifndef __ISA_H__ #define __ISA_H__ #include "emu.h" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_ISA8_CPU(_cputag) \ isa8_device::static_set_cputag(*device, _cputag); // include this in a driver to have ISA allocate it's own address spaces (e.g. non-x86) #define MCFG_ISA8_BUS_CUSTOM_SPACES() \ isa8_device::static_set_custom_spaces(*device); #define MCFG_ISA8_SLOT_ADD(_isatag, _tag, _slot_intf, _def_slot, _fixed) \ MCFG_DEVICE_ADD(_tag, ISA8_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, _fixed) \ isa8_slot_device::static_set_isa8_slot(*device, owner, _isatag); #define MCFG_ISA16_CPU(_cputag) \ isa8_device::static_set_cputag(*device, _cputag); #define MCFG_ISA16_BUS_CUSTOM_SPACES() \ isa8_device::static_set_custom_spaces(*device); #define MCFG_ISA16_SLOT_ADD(_isatag, _tag, _slot_intf, _def_slot, _fixed) \ MCFG_DEVICE_ADD(_tag, ISA16_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, _fixed) \ isa16_slot_device::static_set_isa16_slot(*device, owner, _isatag); #define MCFG_ISA_BUS_IOCHCK(_iochck) \ downcast(device)->set_iochck_callback(DEVCB_##_iochck); #define MCFG_ISA_OUT_IRQ2_CB(_devcb) \ devcb = &isa8_device::set_out_irq2_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ3_CB(_devcb) \ devcb = &isa8_device::set_out_irq3_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ4_CB(_devcb) \ devcb = &isa8_device::set_out_irq4_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ5_CB(_devcb) \ devcb = &isa8_device::set_out_irq5_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ6_CB(_devcb) \ devcb = &isa8_device::set_out_irq6_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ7_CB(_devcb) \ devcb = &isa8_device::set_out_irq7_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_DRQ1_CB(_devcb) \ devcb = &isa8_device::set_out_drq1_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_DRQ2_CB(_devcb) \ devcb = &isa8_device::set_out_drq2_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_DRQ3_CB(_devcb) \ devcb = &isa8_device::set_out_drq3_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ10_CB(_devcb) \ devcb = &isa16_device::set_out_irq10_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ11_CB(_devcb) \ devcb = &isa16_device::set_out_irq11_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ12_CB(_devcb) \ devcb = &isa16_device::set_out_irq12_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ14_CB(_devcb) \ devcb = &isa16_device::set_out_irq14_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_IRQ15_CB(_devcb) \ devcb = &isa16_device::set_out_irq15_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_DRQ0_CB(_devcb) \ devcb = &isa16_device::set_out_drq0_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_DRQ5_CB(_devcb) \ devcb = &isa16_device::set_out_drq5_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_DRQ6_CB(_devcb) \ devcb = &isa16_device::set_out_drq6_callback(*device, DEVCB_##_devcb); #define MCFG_ISA_OUT_DRQ7_CB(_devcb) \ devcb = &isa16_device::set_out_drq7_callback(*device, DEVCB_##_devcb); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class isa8_device; class isa8_slot_device : public device_t, public device_slot_interface { public: // construction/destruction isa8_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); isa8_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_isa8_slot(device_t &device, device_t *owner, const char *isa_tag); protected: // configuration device_t *m_owner; const char *m_isa_tag; }; // device type definition extern const device_type ISA8_SLOT; class device_isa8_card_interface; // ======================> isa8_device class isa8_device : public device_t, public device_memory_interface { public: // construction/destruction isa8_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); isa8_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); static void static_set_custom_spaces(device_t &device); template void set_iochck_callback(_iochck iochck) { m_write_iochck.set_callback(iochck); } template static devcb_base &set_out_irq2_callback(device_t &device, _Object object) { return downcast(device).m_out_irq2_cb.set_callback(object); } template static devcb_base &set_out_irq3_callback(device_t &device, _Object object) { return downcast(device).m_out_irq3_cb.set_callback(object); } template static devcb_base &set_out_irq4_callback(device_t &device, _Object object) { return downcast(device).m_out_irq4_cb.set_callback(object); } template static devcb_base &set_out_irq5_callback(device_t &device, _Object object) { return downcast(device).m_out_irq5_cb.set_callback(object); } template static devcb_base &set_out_irq6_callback(device_t &device, _Object object) { return downcast(device).m_out_irq6_cb.set_callback(object); } template static devcb_base &set_out_irq7_callback(device_t &device, _Object object) { return downcast(device).m_out_irq7_cb.set_callback(object); } template static devcb_base &set_out_drq1_callback(device_t &device, _Object object) { return downcast(device).m_out_drq1_cb.set_callback(object); } template static devcb_base &set_out_drq2_callback(device_t &device, _Object object) { return downcast(device).m_out_drq2_cb.set_callback(object); } template static devcb_base &set_out_drq3_callback(device_t &device, _Object object) { return downcast(device).m_out_drq3_cb.set_callback(object); } // for ISA8, put the 8-bit configs in the primary slots and the 16-bit configs in the secondary virtual const address_space_config *memory_space_config(address_spacenum spacenum) const { switch (spacenum) { case AS_PROGRAM: return &m_program_config; case AS_IO: return &m_io_config; case AS_DATA: return &m_program16_config; case AS_3: return &m_io16_config; default: fatalerror("isa: invalid memory space!\n"); } } void install_device(offs_t start, offs_t end, offs_t mask, offs_t mirror, read8_delegate rhandler, write8_delegate whandler); template void install_device(offs_t addrstart, offs_t addrend, T &device, void (T::*map)(class address_map &map, device_t &device), int bits = 8, UINT64 unitmask = U64(0xffffffffffffffff)) { m_iospace->install_device(addrstart, addrend, device, map, bits, unitmask); } void install_bank(offs_t start, offs_t end, offs_t mask, offs_t mirror, const char *tag, UINT8 *data); void install_rom(device_t *dev, offs_t start, offs_t end, offs_t mask, offs_t mirror, const char *tag, const char *region); void install_memory(offs_t start, offs_t end, offs_t mask, offs_t mirror, read8_delegate rhandler, write8_delegate whandler); void unmap_bank(offs_t start, offs_t end, offs_t mask, offs_t mirror); void unmap_rom(offs_t start, offs_t end, offs_t mask, offs_t mirror); bool is_option_rom_space_available(offs_t start, int size); DECLARE_WRITE_LINE_MEMBER( irq2_w ); DECLARE_WRITE_LINE_MEMBER( irq3_w ); DECLARE_WRITE_LINE_MEMBER( irq4_w ); DECLARE_WRITE_LINE_MEMBER( irq5_w ); DECLARE_WRITE_LINE_MEMBER( irq6_w ); DECLARE_WRITE_LINE_MEMBER( irq7_w ); DECLARE_WRITE_LINE_MEMBER( drq1_w ); DECLARE_WRITE_LINE_MEMBER( drq2_w ); DECLARE_WRITE_LINE_MEMBER( drq3_w ); // 8 bit accessors for ISA-defined address spaces DECLARE_READ8_MEMBER(prog_r); DECLARE_WRITE8_MEMBER(prog_w); DECLARE_READ8_MEMBER(io_r); DECLARE_WRITE8_MEMBER(io_w); UINT8 dack_r(int line); void dack_w(int line,UINT8 data); void eop_w(int channels, int state); void nmi(); void set_nmi_state(bool enabled) { m_nmi_enabled = enabled; } virtual void set_dma_channel(UINT8 channel, device_isa8_card_interface *dev, bool do_eop); const address_space_config m_program_config, m_io_config, m_program16_config, m_io16_config; protected: void install_space(address_spacenum spacenum, offs_t start, offs_t end, offs_t mask, offs_t mirror, read8_delegate rhandler, write8_delegate whandler); // device-level overrides virtual void device_start(); virtual void device_reset(); virtual void device_config_complete(); // internal state cpu_device *m_maincpu; // address spaces address_space *m_iospace, *m_prgspace; int m_iowidth, m_prgwidth; bool m_allocspaces; devcb_write_line m_out_irq2_cb; devcb_write_line m_out_irq3_cb; devcb_write_line m_out_irq4_cb; devcb_write_line m_out_irq5_cb; devcb_write_line m_out_irq6_cb; devcb_write_line m_out_irq7_cb; devcb_write_line m_out_drq1_cb; devcb_write_line m_out_drq2_cb; devcb_write_line m_out_drq3_cb; device_isa8_card_interface *m_dma_device[8]; bool m_dma_eop[8]; const char *m_cputag; bool m_nmi_enabled; private: devcb_write_line m_write_iochck; }; // device type definition extern const device_type ISA8; // ======================> device_isa8_card_interface // class representing interface-specific live isa8 card class device_isa8_card_interface : public device_slot_card_interface { friend class isa8_device; public: // construction/destruction device_isa8_card_interface(const machine_config &mconfig, device_t &device); virtual ~device_isa8_card_interface(); device_isa8_card_interface *next() const { return m_next; } void set_isa_device(); // configuration access virtual UINT8 dack_r(int line); virtual void dack_w(int line,UINT8 data); virtual void eop_w(int state); // inline configuration static void static_set_isabus(device_t &device, device_t *isa_device); public: isa8_device *m_isa; device_t *m_isa_dev; device_isa8_card_interface *m_next; }; class isa16_device; class isa16_slot_device : public isa8_slot_device { public: // construction/destruction isa16_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_isa16_slot(device_t &device, device_t *owner, const char *isa_tag); }; // device type definition extern const device_type ISA16_SLOT; // ======================> isa16_device class isa16_device : public isa8_device { public: // construction/destruction isa16_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); template static devcb_base &set_out_irq10_callback(device_t &device, _Object object) { return downcast(device).m_out_irq10_cb.set_callback(object); } template static devcb_base &set_out_irq11_callback(device_t &device, _Object object) { return downcast(device).m_out_irq11_cb.set_callback(object); } template static devcb_base &set_out_irq12_callback(device_t &device, _Object object) { return downcast(device).m_out_irq12_cb.set_callback(object); } template static devcb_base &set_out_irq14_callback(device_t &device, _Object object) { return downcast(device).m_out_irq14_cb.set_callback(object); } template static devcb_base &set_out_irq15_callback(device_t &device, _Object object) { return downcast(device).m_out_irq15_cb.set_callback(object); } template static devcb_base &set_out_drq0_callback(device_t &device, _Object object) { return downcast(device).m_out_drq0_cb.set_callback(object); } template static devcb_base &set_out_drq5_callback(device_t &device, _Object object) { return downcast(device).m_out_drq5_cb.set_callback(object); } template static devcb_base &set_out_drq6_callback(device_t &device, _Object object) { return downcast(device).m_out_drq6_cb.set_callback(object); } template static devcb_base &set_out_drq7_callback(device_t &device, _Object object) { return downcast(device).m_out_drq7_cb.set_callback(object); } void install16_device(offs_t start, offs_t end, offs_t mask, offs_t mirror, read16_delegate rhandler, write16_delegate whandler); // for ISA16, put the 16-bit configs in the primary slots and the 8-bit configs in the secondary virtual const address_space_config *memory_space_config(address_spacenum spacenum) const { switch (spacenum) { case AS_PROGRAM: return &m_program16_config; case AS_IO: return &m_io16_config; case AS_DATA: return &m_program_config; case AS_3: return &m_io_config; default: fatalerror("isa: invalid memory space!\n"); } } DECLARE_WRITE_LINE_MEMBER( irq10_w ); DECLARE_WRITE_LINE_MEMBER( irq11_w ); DECLARE_WRITE_LINE_MEMBER( irq12_w ); DECLARE_WRITE_LINE_MEMBER( irq14_w ); DECLARE_WRITE_LINE_MEMBER( irq15_w ); DECLARE_WRITE_LINE_MEMBER( drq0_w ); DECLARE_WRITE_LINE_MEMBER( drq5_w ); DECLARE_WRITE_LINE_MEMBER( drq6_w ); DECLARE_WRITE_LINE_MEMBER( drq7_w ); UINT16 dack16_r(int line); void dack16_w(int line,UINT16 data); // 16 bit accessors for ISA-defined address spaces DECLARE_READ16_MEMBER(prog16_r); DECLARE_WRITE16_MEMBER(prog16_w); DECLARE_READ16_MEMBER(io16_r); DECLARE_WRITE16_MEMBER(io16_w); // byte-swapped versions of 16-bit accessors DECLARE_READ16_MEMBER(prog16_swap_r); DECLARE_WRITE16_MEMBER(prog16_swap_w); DECLARE_READ16_MEMBER(io16_swap_r); DECLARE_WRITE16_MEMBER(io16_swap_w); protected: // device-level overrides virtual void device_start(); virtual void device_config_complete(); private: // internal state devcb_write_line m_out_irq10_cb; devcb_write_line m_out_irq11_cb; devcb_write_line m_out_irq12_cb; devcb_write_line m_out_irq14_cb; devcb_write_line m_out_irq15_cb; devcb_write_line m_out_drq0_cb; devcb_write_line m_out_drq5_cb; devcb_write_line m_out_drq6_cb; devcb_write_line m_out_drq7_cb; }; // device type definition extern const device_type ISA16; // ======================> device_isa16_card_interface // class representing interface-specific live isa16 card class device_isa16_card_interface : public device_isa8_card_interface { friend class isa16_device; public: // construction/destruction device_isa16_card_interface(const machine_config &mconfig, device_t &device); virtual ~device_isa16_card_interface(); virtual UINT16 dack16_r(int line); virtual void dack16_w(int line,UINT16 data); void set_isa_device(); isa16_device *m_isa; }; #endif /* __ISA_H__ */