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Diffstat (limited to 'src/devices/bus/adam/exp.h')
-rw-r--r-- | src/devices/bus/adam/exp.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/devices/bus/adam/exp.h b/src/devices/bus/adam/exp.h new file mode 100644 index 00000000000..7719c3f8d11 --- /dev/null +++ b/src/devices/bus/adam/exp.h @@ -0,0 +1,130 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Coleco Adam Expansion Port emulation + +**********************************************************************/ + +#pragma once + +#ifndef __ADAM_EXPANSION_SLOT__ +#define __ADAM_EXPANSION_SLOT__ + +#include "emu.h" + + + +//************************************************************************** +// CONSTANTS +//************************************************************************** + +#define ADAM_LEFT_EXPANSION_SLOT_TAG "slot1" +#define ADAM_CENTER_EXPANSION_SLOT_TAG "slot2" +#define ADAM_RIGHT_EXPANSION_SLOT_TAG "slot3" + + + +//************************************************************************** +// INTERFACE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_ADAM_EXPANSION_SLOT_ADD(_tag, _clock, _slot_intf, _def_slot) \ + MCFG_DEVICE_ADD(_tag, ADAM_EXPANSION_SLOT, _clock) \ + MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) + + +#define MCFG_ADAM_EXPANSION_SLOT_IRQ_CALLBACK(_write) \ + devcb = &adam_expansion_slot_device::set_irq_wr_callback(*device, DEVCB_##_write); + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> adam_expansion_slot_device + +class device_adam_expansion_slot_card_interface; + +class adam_expansion_slot_device : public device_t, + public device_slot_interface, + public device_image_interface +{ +public: + // construction/destruction + adam_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + virtual ~adam_expansion_slot_device() { } + + template<class _Object> static devcb_base &set_irq_wr_callback(device_t &device, _Object object) { return downcast<adam_expansion_slot_device &>(device).m_write_irq.set_callback(object); } + + // computer interface + UINT8 bd_r(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2); + void bd_w(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2); + + // cartridge interface + DECLARE_WRITE_LINE_MEMBER( irq_w ) { m_write_irq(state); } + +protected: + // device-level overrides + virtual void device_config_complete() { update_names(); } + virtual void device_start(); + virtual void device_reset(); + + // image-level overrides + virtual bool call_load(); + virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry); + + virtual iodevice_t image_type() const { return IO_CARTSLOT; } + + virtual bool is_readable() const { return 1; } + virtual bool is_writeable() const { return 0; } + virtual bool is_creatable() const { return 0; } + virtual bool must_be_loaded() const { return 0; } + virtual bool is_reset_on_load() const { return 1; } + virtual const char *image_interface() const { return "adam_rom"; } + virtual const char *file_extensions() const { return "bin,rom"; } + virtual const option_guide *create_option_guide() const { return NULL; } + + // slot interface overrides + virtual void get_default_card_software(std::string &result); + + devcb_write_line m_write_irq; + + device_adam_expansion_slot_card_interface *m_card; +}; + + +// ======================> device_adam_expansion_slot_card_interface + +class device_adam_expansion_slot_card_interface : public device_slot_card_interface +{ + friend class adam_expansion_slot_device; + +public: + // construction/destruction + device_adam_expansion_slot_card_interface(const machine_config &mconfig, device_t &device); + virtual ~device_adam_expansion_slot_card_interface() { } + +protected: + // runtime + virtual UINT8 adam_bd_r(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2) { return data; } + virtual void adam_bd_w(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2) { } + + adam_expansion_slot_device *m_slot; + + optional_shared_ptr<UINT8> m_rom; +}; + + +// device type definition +extern const device_type ADAM_EXPANSION_SLOT; + + +SLOT_INTERFACE_EXTERN( adam_slot1_devices ); +SLOT_INTERFACE_EXTERN( adam_slot2_devices ); +SLOT_INTERFACE_EXTERN( adam_slot3_devices ); + + + +#endif |