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// license:BSD-3-Clause
// copyright-holders:smf
/*
scsihle.h
Base class for HLE'd SCSI devices.
*/
#ifndef MAME_BUS_SCSI_SCSIHLE_H
#define MAME_BUS_SCSI_SCSIHLE_H
#include "scsi.h"
#include "machine/t10spc.h"
INPUT_PORTS_EXTERN( scsihle );
class scsihle_device : public device_t,
public scsi_port_interface,
public virtual t10spc
{
public:
virtual int GetDeviceID(); // hack for legacy_scsi_host_adapter::get_device
virtual DECLARE_WRITE_LINE_MEMBER( input_sel ) override;
virtual DECLARE_WRITE_LINE_MEMBER( input_ack ) override;
virtual DECLARE_WRITE_LINE_MEMBER( input_rst ) override;
virtual DECLARE_WRITE_LINE_MEMBER( input_data0 ) override { if (state) m_input_data |= 0x01; else m_input_data &= ~0x01; }
virtual DECLARE_WRITE_LINE_MEMBER( input_data1 ) override { if (state) m_input_data |= 0x02; else m_input_data &= ~0x02; }
virtual DECLARE_WRITE_LINE_MEMBER( input_data2 ) override { if (state) m_input_data |= 0x04; else m_input_data &= ~0x04; }
virtual DECLARE_WRITE_LINE_MEMBER( input_data3 ) override { if (state) m_input_data |= 0x08; else m_input_data &= ~0x08; }
virtual DECLARE_WRITE_LINE_MEMBER( input_data4 ) override { if (state) m_input_data |= 0x10; else m_input_data &= ~0x10; }
virtual DECLARE_WRITE_LINE_MEMBER( input_data5 ) override { if (state) m_input_data |= 0x20; else m_input_data &= ~0x20; }
virtual DECLARE_WRITE_LINE_MEMBER( input_data6 ) override { if (state) m_input_data |= 0x40; else m_input_data &= ~0x40; }
virtual DECLARE_WRITE_LINE_MEMBER( input_data7 ) override { if (state) m_input_data |= 0x80; else m_input_data &= ~0x80; }
protected:
// construction/destruction
scsihle_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock);
// device-level overrides
virtual ioport_constructor device_input_ports() const override;
virtual void device_start() override;
virtual void device_reset() override;
TIMER_CALLBACK_MEMBER(req_tick);
TIMER_CALLBACK_MEMBER(sel_tick);
TIMER_CALLBACK_MEMBER(dataout_tick);
private:
required_ioport m_scsi_id;
void data_out(uint8_t data);
void scsi_out_req_delay(uint8_t state);
void scsi_change_phase(uint8_t newphase);
int get_scsi_cmd_len(int cbyte);
uint8_t scsibus_driveno(uint8_t drivesel);
void scsibus_read_data();
void scsibus_write_data();
void scsibus_exec_command();
void dump_command_bytes();
void dump_data_bytes(int count);
void dump_bytes(uint8_t *buff, int count);
emu_timer *req_timer;
emu_timer *sel_timer;
emu_timer *dataout_timer;
uint8_t cmd_idx;
uint8_t is_linked;
uint8_t buffer[ 1024 ];
uint16_t data_idx;
int bytes_left;
int data_last;
int scsiID;
uint8_t m_input_data;
};
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_0)[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_1)[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_2)[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_3)[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_4)[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_5)[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_6)[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME(SCSI_ID_7)[];
#endif // MAME_BUS_SCSI_SCSIHLE_H
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