diff options
Diffstat (limited to 'src/devices/bus/wswan/slot.h')
-rw-r--r-- | src/devices/bus/wswan/slot.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/devices/bus/wswan/slot.h b/src/devices/bus/wswan/slot.h new file mode 100644 index 00000000000..87ac47a2a97 --- /dev/null +++ b/src/devices/bus/wswan/slot.h @@ -0,0 +1,131 @@ +// license:BSD-3-Clause +// copyright-holders:Wilbert Pol +#ifndef __WS_SLOT_H +#define __WS_SLOT_H + +/*************************************************************************** + TYPE DEFINITIONS + ***************************************************************************/ + + +/* PCB */ +enum +{ + WS_STD = 0, + WS_SRAM, + WS_EEPROM +}; + + +// ======================> device_ws_cart_interface + +class device_ws_cart_interface : public device_slot_card_interface +{ +public: + // construction/destruction + device_ws_cart_interface(const machine_config &mconfig, device_t &device); + virtual ~device_ws_cart_interface(); + + // reading and writing + virtual DECLARE_READ8_MEMBER(read_rom20) { return 0xff; } + virtual DECLARE_READ8_MEMBER(read_rom30) { return 0xff; } + virtual DECLARE_READ8_MEMBER(read_rom40) { return 0xff; } + virtual DECLARE_READ8_MEMBER(read_ram) { return 0xff; } + virtual DECLARE_WRITE8_MEMBER(write_ram) {} + virtual DECLARE_READ8_MEMBER(read_io) { return 0xff; } + virtual DECLARE_WRITE8_MEMBER(write_io) {} + + void rom_alloc(UINT32 size, const char *tag); + void nvram_alloc(UINT32 size); + UINT8* get_rom_base() { return m_rom; } + UINT8* get_nvram_base() { return &m_nvram[0]; } + UINT32 get_rom_size() { return m_rom_size; } + UINT32 get_nvram_size() { return m_nvram.size(); } + + void save_nvram() { device().save_item(NAME(m_nvram)); } + void set_has_rtc(bool val) { m_has_rtc = val; } + void set_is_rotated(bool val) { m_is_rotated = val; } + int get_is_rotated() { return m_is_rotated ? 1 : 0; } + +protected: + // internal state + UINT8 *m_rom; + UINT32 m_rom_size; + dynamic_buffer m_nvram; + int m_bank_mask; + + bool m_has_rtc, m_is_rotated; +}; + + +// ======================> ws_cart_slot_device + +class ws_cart_slot_device : public device_t, + public device_image_interface, + public device_slot_interface +{ +public: + // construction/destruction + ws_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + virtual ~ws_cart_slot_device(); + + // device-level overrides + virtual void device_start(); + virtual void device_config_complete(); + + // image-level overrides + virtual bool call_load(); + virtual void call_unload(); + virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry); + + int get_type() { return m_type; } + int get_is_rotated() { return m_cart->get_is_rotated(); } + int get_cart_type(UINT8 *ROM, UINT32 len, UINT32 &nvram_len); + void internal_header_logging(UINT8 *ROM, UINT32 offs, UINT32 len); + + void save_nvram() { if (m_cart && m_cart->get_nvram_size()) m_cart->save_nvram(); } + + 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 1; } + virtual bool is_reset_on_load() const { return 1; } + virtual const option_guide *create_option_guide() const { return NULL; } + virtual const char *image_interface() const { return "wswan_cart"; } + virtual const char *file_extensions() const { return "ws,wsc,bin"; } + + // slot interface overrides + virtual void get_default_card_software(std::string &result); + + // reading and writing + virtual DECLARE_READ8_MEMBER(read_rom20); + virtual DECLARE_READ8_MEMBER(read_rom30); + virtual DECLARE_READ8_MEMBER(read_rom40); + virtual DECLARE_READ8_MEMBER(read_ram); + virtual DECLARE_WRITE8_MEMBER(write_ram); + virtual DECLARE_READ8_MEMBER(read_io); + virtual DECLARE_WRITE8_MEMBER(write_io); + +protected: + + int m_type; + device_ws_cart_interface* m_cart; +}; + + + +// device type definition +extern const device_type WS_CART_SLOT; + + +/*************************************************************************** + DEVICE CONFIGURATION MACROS + ***************************************************************************/ + +#define WSSLOT_ROM_REGION_TAG ":cart:rom" + +#define MCFG_WSWAN_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \ + MCFG_DEVICE_ADD(_tag, WS_CART_SLOT, 0) \ + MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) +#endif |