// license:GPL-2.0+
// copyright-holders:Juergen Buchmueller
/*
ataridev.h
*/
#ifndef MAME_MACHINE_ATARIFDC_H
#define MAME_MACHINE_ATARIFDC_H
#include "imagedev/flopdrv.h"
#include "machine/6821pia.h"
#include "sound/pokey.h"
class atari_fdc_device : public device_t
{
public:
atari_fdc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_READ8_MEMBER( serin_r );
DECLARE_WRITE8_MEMBER( serout_w );
DECLARE_WRITE_LINE_MEMBER( pia_cb2_w );
void atari_load_proc(device_image_interface &image, bool is_created);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_add_mconfig(machine_config &config) override;
private:
void clr_serout(int expect_data);
void add_serout(int expect_data);
void clr_serin(int ser_delay);
void add_serin(uint8_t data, int with_checksum);
void a800_serial_command();
void a800_serial_write();
struct atari_drive
{
std::unique_ptr<uint8_t[]> image; /* alloc'd image */
int type; /* type of image (XFD, ATR, DSK) */
int mode; /* 0 read only, != 0 read/write */
int density; /* 0 SD, 1 MD, 2 DD */
int header_skip; /* number of bytes in format header */
int tracks; /* number of tracks (35,40,77,80) */
int heads; /* number of heads (1,2) */
int spt; /* sectors per track (18,26) */
int seclen; /* sector length (128,256) */
int bseclen; /* boot sector length (sectors 1..3) */
int sectors; /* total sectors, ie. tracks x heads x spt */
};
required_device_array<legacy_floppy_image_device, 4> m_floppy;
required_device<pokey_device> m_pokey;
required_device<pia6821_device> m_pia;
int m_serout_count;
int m_serout_offs;
uint8_t m_serout_buff[512];
uint8_t m_serout_chksum;
// int m_serout_delay;
int m_serin_count;
int m_serin_offs;
uint8_t m_serin_buff[512];
uint8_t m_serin_chksum;
int m_serin_delay;
atari_drive m_drv[4];
};
DECLARE_DEVICE_TYPE(ATARI_FDC, atari_fdc_device)
#endif // MAME_MACHINE_ATARIFDC_H