// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Western Digital WD2010 Winchester Disk Controller
**********************************************************************/
#pragma once
#ifndef __WD2010__
#define __WD2010__
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_WD2010_OUT_INTRQ_CB(_devcb) \
devcb = &wd2010_device::set_out_intrq_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_OUT_BDRQ_CB(_devcb) \
devcb = &wd2010_device::set_out_bdrq_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_OUT_BCR_CB(_devcb) \
devcb = &wd2010_device::set_out_bcr_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_IN_BRDY_CB(_devcb) \
devcb = &wd2010_device::set_in_brdy_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_IN_BCS_CB(_devcb) \
devcb = &wd2010_device::set_in_bcs_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_OUT_BCS_CB(_devcb) \
devcb = &wd2010_device::set_out_bcs_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_OUT_DIRIN_CB(_devcb) \
devcb = &wd2010_device::set_out_dirin_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_OUT_STEP_CB(_devcb) \
devcb = &wd2010_device::set_out_step_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_OUT_RWC_CB(_devcb) \
devcb = &wd2010_device::set_out_rwc_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_OUT_WG_CB(_devcb) \
devcb = &wd2010_device::set_out_wg_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_IN_DRDY_CB(_devcb) \
devcb = &wd2010_device::set_in_drdy_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_IN_INDEX_CB(_devcb) \
devcb = &wd2010_device::set_in_index_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_IN_WF_CB(_devcb) \
devcb = &wd2010_device::set_in_wf_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_IN_TK000_CB(_devcb) \
devcb = &wd2010_device::set_in_tk000_callback(*device, DEVCB_##_devcb);
#define MCFG_WD2010_IN_SC_CB(_devcb) \
devcb = &wd2010_device::set_in_sc_callback(*device, DEVCB_##_devcb);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> wd2010_device
class wd2010_device : public device_t
{
public:
// construction/destruction
wd2010_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template<class _Object> static devcb_base &set_out_intrq_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_out_intrq_cb.set_callback(object); }
template<class _Object> static devcb_base &set_out_bdrq_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_out_bdrq_cb.set_callback(object); }
template<class _Object> static devcb_base &set_out_bcr_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_out_bcr_cb.set_callback(object); }
template<class _Object> static devcb_base &set_in_brdy_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_in_brdy_cb.set_callback(object); }
template<class _Object> static devcb_base &set_in_bcs_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_in_bcs_cb.set_callback(object); }
template<class _Object> static devcb_base &set_out_bcs_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_out_bcs_cb.set_callback(object); }
template<class _Object> static devcb_base &set_out_dirin_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_out_dirin_cb.set_callback(object); }
template<class _Object> static devcb_base &set_out_step_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_out_step_cb.set_callback(object); }
template<class _Object> static devcb_base &set_out_rwc_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_out_rwc_cb.set_callback(object); }
template<class _Object> static devcb_base &set_out_wg_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_out_wg_cb.set_callback(object); }
template<class _Object> static devcb_base &set_in_drdy_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_in_drdy_cb.set_callback(object); }
template<class _Object> static devcb_base &set_in_index_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_in_index_cb.set_callback(object); }
template<class _Object> static devcb_base &set_in_wf_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_in_wf_cb.set_callback(object); }
template<class _Object> static devcb_base &set_in_tk000_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_in_tk000_cb.set_callback(object); }
template<class _Object> static devcb_base &set_in_sc_callback(device_t &device, _Object object) { return downcast<wd2010_device &>(device).m_in_sc_cb.set_callback(object); }
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
void buffer_ready(bool state);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
void compute_correction(uint8_t data);
void set_parameter(uint8_t data);
void restore(uint8_t data);
void seek(uint8_t data);
void read_sector(uint8_t data);
void write_sector(uint8_t data);
void scan_id(uint8_t data);
void update_sdh(uint8_t new_sector_size, uint8_t new_head, uint16_t new_cylinder, uint8_t new_sectornr);
void auto_scan_id(uint8_t data);
void format(uint8_t data);
devcb_write_line m_out_intrq_cb;
devcb_write_line m_out_bdrq_cb;
devcb_write_line m_out_bcr_cb;
devcb_read8 m_in_bcs_cb;
devcb_read_line m_in_brdy_cb;
devcb_write8 m_out_bcs_cb;
devcb_write_line m_out_dirin_cb;
devcb_write_line m_out_step_cb;
devcb_write_line m_out_rwc_cb;
devcb_write_line m_out_wg_cb;
devcb_read_line m_in_drdy_cb;
devcb_read_line m_in_index_cb;
devcb_read_line m_in_wf_cb;
devcb_read_line m_in_tk000_cb;
devcb_read_line m_in_sc_cb;
uint8_t m_status;
uint8_t m_error;
uint8_t m_task_file[8];
emu_timer *cmd_timer;
emu_timer *complete_write_when_buffer_ready_high;
emu_timer *deassert_write_when_buffer_ready_low;
emu_timer *deassert_read_when_buffer_ready_high;
void complete_write_sector(uint8_t status);
void complete_cmd(uint8_t status);
void complete_immediate(uint8_t status);
bool is_buffer_ready;
uint32_t m_present_cylinder; // Present Cylinder Position Register
};
// device type definition
extern const device_type WD2010;
#endif