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// license:BSD-3-Clause
// copyright-holders:smf
/***************************************************************************
idehd.h
IDE Harddisk
***************************************************************************/
#ifndef MAME_MACHINE_IDEHD_H
#define MAME_MACHINE_IDEHD_H
#pragma once
#include "atahle.h"
#include "harddisk.h"
#include "imagedev/harddriv.h"
class ata_mass_storage_device : public ata_hle_device
{
public:
uint16_t *identify_device_buffer() { return m_identify_buffer; }
void set_master_password(const uint8_t *password)
{
m_master_password = password;
m_master_password_enable = (password != nullptr);
}
void set_user_password(const uint8_t *password)
{
m_user_password = password;
m_user_password_enable = (password != nullptr);
}
void set_dma_transfer_time(const attotime time) { m_dma_transfer_time = time; };
protected:
ata_mass_storage_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
virtual void device_start() override;
virtual int read_sector(uint32_t lba, void *buffer) = 0;
virtual int write_sector(uint32_t lba, const void *buffer) = 0;
virtual attotime seek_time();
void ide_build_identify_device();
static const int IDE_DISK_SECTOR_SIZE = 512;
virtual int sector_length() override { return IDE_DISK_SECTOR_SIZE; }
virtual void process_buffer() override;
virtual void fill_buffer() override;
virtual bool is_ready() override { return true; }
virtual void process_command() override;
virtual void finished_command() override;
virtual void perform_diagnostic() override;
virtual void signature() override;
int m_can_identify_device;
uint16_t m_num_cylinders;
uint8_t m_num_sectors;
uint8_t m_num_heads;
virtual uint32_t lba_address();
private:
void set_geometry(uint8_t sectors, uint8_t heads) { m_num_sectors = sectors; m_num_heads = heads; }
void finished_read();
void finished_write();
void next_sector();
void security_error();
void read_first_sector();
void soft_reset() override;
uint32_t m_cur_lba;
uint16_t m_block_count;
uint16_t m_sectors_until_int;
uint8_t m_master_password_enable;
uint8_t m_user_password_enable;
const uint8_t * m_master_password;
const uint8_t * m_user_password;
// DMA data transfer time for 1 sector
attotime m_dma_transfer_time;
};
// ======================> ide_hdd_device
class ide_hdd_device : public ata_mass_storage_device
{
public:
// construction/destruction
ide_hdd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
ide_hdd_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;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual int read_sector(uint32_t lba, void *buffer) override { return !m_disk ? 0 : hard_disk_read(m_disk, lba, buffer); }
virtual int write_sector(uint32_t lba, const void *buffer) override { return !m_disk ? 0 : hard_disk_write(m_disk, lba, buffer); }
virtual uint8_t calculate_status() override;
chd_file *m_handle;
hard_disk_file *m_disk;
enum
{
TID_NULL = TID_BUSY + 1
};
private:
required_device<harddisk_image_device> m_image;
emu_timer * m_last_status_timer;
};
// device type definition
DECLARE_DEVICE_TYPE(IDE_HARDDISK, ide_hdd_device)
#endif // MAME_MACHINE_IDEHD_H
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