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// license:BSD-3-Clause
// copyright-holders:Hans Ostermeyer,R. Belmont
/*
* omti8621.h - SMS OMTI 8621 disk controller
*
* Created on: August 30, 2010
* Author: Hans Ostermeyer
*
* Converted to ISA device March 3, 2014 by R. Belmont
*
*/
#ifndef MAME_BUS_ISA_OMTI8621_H
#define MAME_BUS_ISA_OMTI8621_H
#pragma once
#include "isa.h"
#include "machine/upd765.h"
#include "imagedev/floppy.h"
/***************************************************************************
FUNCTION PROTOTYPES
***************************************************************************/
class omti_disk_image_device;
/* ----- device interface ----- */
class omti8621_device : public device_t, public device_isa16_card_interface
{
public:
uint16_t read(offs_t offset, uint16_t mem_mask = 0xffff);
void write(offs_t offset, uint16_t data, uint16_t mem_mask = 0xffff);
static void set_verbose(int on_off);
protected:
static constexpr unsigned OMTI_MAX_LUN = 1;
static constexpr unsigned CDB_SIZE = 10;
omti8621_device(
const machine_config &mconfig,
device_type type,
const char *tag,
device_t *owner,
uint32_t clock);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param) override;
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
virtual uint8_t dack_r(int line) override;
virtual void dack_w(int line, uint8_t data) override;
virtual void dack_line_w(int line, int state) override;
virtual void eop_w(int state) override;
void set_interrupt(enum line_state line_state);
required_device<upd765a_device> m_fdc;
optional_device_array<floppy_connector, 2> m_floppy;
required_ioport m_iobase;
required_ioport m_biosopts;
omti_disk_image_device *our_disks[OMTI_MAX_LUN+1];
std::string cpu_context() const;
private:
DECLARE_WRITE_LINE_MEMBER( fdc_irq_w );
DECLARE_WRITE_LINE_MEMBER( fdc_drq_w );
static void floppy_formats(format_registration &fr);
void fd_moten_w(uint8_t data);
void fd_rate_w(uint8_t data);
void fd_extra_w(uint8_t data);
uint8_t fd_disk_chg_r();
void fdc_map(address_map &map);
uint16_t jumper;
uint8_t omti_state;
uint8_t status_port;
uint8_t config_port;
uint8_t mask_port;
// command descriptor block
uint8_t command_buffer[CDB_SIZE];
int command_length;
int command_index;
int command_status;
// data buffer
std::vector<uint8_t> sector_buffer;
uint8_t *data_buffer;
int data_length;
int data_index;
// sense data
uint8_t sense_data[4];
// these are used only to satisfy dex
uint32_t diskaddr_ecc_error;
uint32_t diskaddr_format_bad_track;
uint8_t alternate_track_buffer[4];
uint32_t alternate_track_address[2];
emu_timer *m_timer;
uint8_t m_moten;
bool m_installed;
void clear_sense_data();
void set_sense_data(uint8_t code, const uint8_t * cdb);
void set_configuration_data(uint8_t lun);
uint8_t get_lun(const uint8_t * cdb);
uint8_t check_disk_address(const uint8_t *cdb);
uint32_t get_disk_track(const uint8_t * cdb);
uint32_t get_disk_address(const uint8_t * cdb);
void set_data_transfer(uint8_t *data, uint16_t length);
void read_sectors_from_disk(int32_t diskaddr, uint8_t count, uint8_t lun);
void write_sectors_to_disk(int32_t diskaddr, uint8_t count, uint8_t lun);
void copy_sectors(int32_t dst_addr, int32_t src_addr, uint8_t count, uint8_t lun);
void format_track(const uint8_t * cdb);
void set_esdi_defect_list(uint8_t lun, uint8_t head);
template <typename Format, typename... Params> void logerror(Format &&fmt, Params &&... args) const;
void log_command(const uint8_t cdb[], const uint16_t cdb_length);
void log_data();
void do_command(const uint8_t cdb[], const uint16_t cdb_length);
uint8_t get_command_length(uint8_t command_byte);
uint16_t get_data();
void set_data(uint16_t data);
void set_jumper(uint16_t disk_type);
uint8_t read8(offs_t offset);
void write8(offs_t offset, uint8_t data);
};
/* ----- omti8621 for PC device interface ----- */
class omti8621_pc_device : public omti8621_device
{
public:
omti8621_pc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
DECLARE_DEVICE_TYPE(ISA16_OMTI8621, omti8621_pc_device)
/* ----- omti8621 for apollo device interface ----- */
class omti8621_apollo_device : public omti8621_device
{
public:
omti8621_apollo_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// get sector diskaddr of logical unit lun into data_buffer
uint32_t get_sector(int32_t diskaddr, uint8_t *data_buffer, uint32_t length, uint8_t lun);
protected:
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
};
DECLARE_DEVICE_TYPE(ISA16_OMTI8621_APOLLO, omti8621_apollo_device)
//###############################################################
#endif // MAME_BUS_ISA_OMTI8621_H
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