/********************************************************************** Commodore IEC Serial Bus emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. **********************************************************************/ #pragma once #ifndef __CBM_IEC__ #define __CBM_IEC__ #include "emu.h" //************************************************************************** // MACROS / CONSTANTS //************************************************************************** #define CBM_IEC_TAG "iec_bus" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_CBM_IEC_BUS_ADD() \ MCFG_DEVICE_ADD(CBM_IEC_TAG, CBM_IEC, 0) #define MCFG_CBM_IEC_BUS_SRQ_CALLBACK(_write) \ downcast(device)->set_srq_callback(DEVCB2_##_write); #define MCFG_CBM_IEC_BUS_ATN_CALLBACK(_write) \ downcast(device)->set_atn_callback(DEVCB2_##_write); #define MCFG_CBM_IEC_BUS_CLK_CALLBACK(_write) \ downcast(device)->set_clk_callback(DEVCB2_##_write); #define MCFG_CBM_IEC_BUS_DATA_CALLBACK(_write) \ downcast(device)->set_data_callback(DEVCB2_##_write); #define MCFG_CBM_IEC_BUS_RESET_CALLBACK(_write) \ downcast(device)->set_reset_callback(DEVCB2_##_write); #define MCFG_CBM_IEC_SLOT_ADD(_tag, _num, _slot_intf, _def_slot, _def_inp) \ MCFG_DEVICE_ADD(_tag, CBM_IEC_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, _def_inp, false) \ cbm_iec_slot_device::static_set_slot(*device, _num); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> cbm_iec_device class device_cbm_iec_interface; class cbm_iec_device : public device_t { public: // construction/destruction cbm_iec_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); template void set_srq_callback(_write wr) { m_write_srq.set_callback(wr); } template void set_atn_callback(_write wr) { m_write_atn.set_callback(wr); } template void set_clk_callback(_write wr) { m_write_clk.set_callback(wr); } template void set_data_callback(_write wr) { m_write_data.set_callback(wr); } template void set_reset_callback(_write wr) { m_write_reset.set_callback(wr); } void add_device(device_t *target, int address); // reads for both host and peripherals DECLARE_READ_LINE_MEMBER( srq_r ); DECLARE_READ_LINE_MEMBER( atn_r ); DECLARE_READ_LINE_MEMBER( clk_r ); DECLARE_READ_LINE_MEMBER( data_r ); DECLARE_READ_LINE_MEMBER( reset_r ); // writes for host (driver_device) DECLARE_WRITE_LINE_MEMBER( srq_w ); DECLARE_WRITE_LINE_MEMBER( atn_w ); DECLARE_WRITE_LINE_MEMBER( clk_w ); DECLARE_WRITE_LINE_MEMBER( data_w ); DECLARE_WRITE_LINE_MEMBER( reset_w ); // writes for peripherals (device_t) void srq_w(device_t *device, int state); void atn_w(device_t *device, int state); void clk_w(device_t *device, int state); void data_w(device_t *device, int state); void reset_w(device_t *device, int state); protected: enum { SRQ = 0, ATN, CLK, DATA, RESET, SIGNAL_COUNT }; // device-level overrides virtual void device_start(); virtual void device_reset(); virtual void device_stop(); class daisy_entry { public: daisy_entry(device_t *device); daisy_entry *next() const { return m_next; } daisy_entry * m_next; // next device device_t * m_device; // associated device device_cbm_iec_interface * m_interface; // associated device's daisy interface int m_line[SIGNAL_COUNT]; }; simple_list m_device_list; private: devcb2_write_line m_write_srq; devcb2_write_line m_write_atn; devcb2_write_line m_write_clk; devcb2_write_line m_write_data; devcb2_write_line m_write_reset; inline void set_signal(device_t *device, int signal, int state); inline int get_signal(int signal); int m_line[SIGNAL_COUNT]; }; // ======================> cbm_iec_slot_device class cbm_iec_slot_device : public device_t, public device_slot_interface { public: // construction/destruction cbm_iec_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_slot(device_t &device, int address); private: // configuration int m_address; cbm_iec_device *m_bus; }; // ======================> device_cbm_iec_interface class device_cbm_iec_interface : public device_slot_card_interface { friend class cbm_iec_device; public: // construction/destruction device_cbm_iec_interface(const machine_config &mconfig, device_t &device); virtual ~device_cbm_iec_interface(); device_cbm_iec_interface *next() const { return m_next; } device_cbm_iec_interface *m_next; // optional operation overrides virtual void cbm_iec_srq(int state) { }; virtual void cbm_iec_atn(int state) { }; virtual void cbm_iec_clk(int state) { }; virtual void cbm_iec_data(int state) { }; virtual void cbm_iec_reset(int state) { }; cbm_iec_device *m_bus; int m_address; }; // device type definition extern const device_type CBM_IEC; extern const device_type CBM_IEC_SLOT; #endif