// license:BSD-3-Clause // copyright-holders:Barry Rodewald /* * mb89352.h * * Created on: 16/01/2011 */ #ifndef MAME_MACHINE_MB89352_H #define MAME_MACHINE_MB89352_H #include "legscsi.h" #define MCFG_MB89352A_IRQ_CB(_devcb) \ devcb = &downcast(*device).set_irq_callback(DEVCB_##_devcb); #define MCFG_MB89352A_DRQ_CB(_devcb) \ devcb = &downcast(*device).set_drq_callback(DEVCB_##_devcb); class mb89352_device : public legacy_scsi_host_adapter { public: // construction/destruction mb89352_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); template devcb_base &set_irq_callback(Object &&cb) { return m_irq_cb.set_callback(std::forward(cb)); } template devcb_base &set_drq_callback(Object &&cb) { return m_drq_cb.set_callback(std::forward(cb)); } // any publically accessible interfaces needed for runtime DECLARE_READ8_MEMBER( mb89352_r ); DECLARE_WRITE8_MEMBER( mb89352_w ); void set_phase(int phase); protected: // device-level overrides (none are required, but these are common) virtual void device_start() override; virtual void device_reset() override; virtual void device_stop() override; virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; private: // internal device state goes here static const device_timer_id TIMER_TRANSFER = 0; int get_scsi_cmd_len(uint8_t cbyte); //void set_ints(uint8_t flag); devcb_write_line m_irq_cb; /* irq callback */ devcb_write_line m_drq_cb; /* drq callback */ uint8_t m_phase; // current SCSI phase uint8_t m_target; // current SCSI target uint8_t m_bdid; // Bus device ID (SCSI ID of the bus?) uint8_t m_ints; // Interrupt Sense uint8_t m_temp; // Temporary register (To/From SCSI bus) uint8_t m_data; // Data register uint8_t m_scmd; // SPC Command register uint32_t m_transfer_count; // byte transfer counter, also used as a timeout counter for selection. uint8_t m_int_enable; uint8_t m_sel_enable; uint8_t m_resel_enable; uint8_t m_parity_enable; uint8_t m_arbit_enable; uint8_t m_busfree_int_enable; uint8_t m_line_status; uint8_t m_spc_status; uint8_t m_error_status; uint8_t m_command_index; uint8_t m_command[16]; uint32_t m_transfer_index; uint8_t m_buffer[512]; emu_timer* m_transfer_timer; }; DECLARE_DEVICE_TYPE(MB89352A, mb89352_device) #endif // MAME_MACHINE_MB89352_H