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// license:BSD-3-Clause
// copyright-holders:Nathan Woods
/*********************************************************************
coco_fdc.h
CoCo/Dragon Floppy Disk Controller base classes
*********************************************************************/
#ifndef MAME_BUS_COCO_COCO_FDC_H
#define MAME_BUS_COCO_COCO_FDC_H
#include "cococart.h"
#include "imagedev/floppy.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> coco_family_fdc_device_base
class coco_family_fdc_device_base :
public device_t,
public device_cococart_interface
{
public:
void fdc_intrq_w(int state) { m_intrq = state; update_lines(); }
void fdc_drq_w(int state) { m_drq = state; update_lines(); }
static void floppy_formats(format_registration &fr);
protected:
// construction/destruction
coco_family_fdc_device_base(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, type, tag, owner, clock)
, device_cococart_interface(mconfig, *this)
{
};
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
// FDC overrides
virtual void update_lines() = 0;
virtual u8 *get_cart_base() override;
virtual memory_region *get_cart_memregion() override;
// accessors
u8 dskreg() const { return m_dskreg; }
bool intrq() const { return m_intrq; }
bool drq() const { return m_drq; }
void set_dskreg(u8 data) { m_dskreg = data; }
private:
// registers
u8 m_dskreg;
bool m_intrq;
bool m_drq;
};
// device type definitions - CoCo FDC
DECLARE_DEVICE_TYPE(COCO_FDC, coco_family_fdc_device_base)
DECLARE_DEVICE_TYPE(COCO_SCII, coco_family_fdc_device_base)
DECLARE_DEVICE_TYPE(CP450_FDC, coco_family_fdc_device_base)
DECLARE_DEVICE_TYPE(CD6809_FDC, coco_family_fdc_device_base)
#endif // MAME_BUS_COCO_COCO_FDC_H
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