// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Western Digital WD2010 Winchester Disk Controller **********************************************************************/ #ifndef MAME_MACHINE_WD2010_H #define MAME_MACHINE_WD2010_H #pragma once //************************************************************************** // 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); auto out_intrq_callback() { return m_out_intrq_cb.bind(); } auto out_bdrq_callback() { return m_out_bdrq_cb.bind(); } auto out_bcr_callback() { return m_out_bcr_cb.bind(); } auto in_brdy_callback() { return m_in_brdy_cb.bind(); } auto in_bcs_callback() { return m_in_bcs_cb.bind(); } auto out_bcs_callback() { return m_out_bcs_cb.bind(); } auto out_dirin_callback() { return m_out_dirin_cb.bind(); } auto out_step_callback() { return m_out_step_cb.bind(); } auto out_rwc_callback() { return m_out_rwc_cb.bind(); } auto out_wg_callback() { return m_out_wg_cb.bind(); } auto in_drdy_callback() { return m_in_drdy_cb.bind(); } auto in_index_callback() { return m_in_index_cb.bind(); } auto in_wf_callback() { return m_in_wf_cb.bind(); } auto in_tk000_callback() { return m_in_tk000_cb.bind(); } auto in_sc_callback() { return m_in_sc_cb.bind(); } uint8_t read(offs_t offset); void write(offs_t offset, uint8_t data); void buffer_ready(bool state); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; TIMER_CALLBACK_MEMBER(command_complete); TIMER_CALLBACK_MEMBER(complete_write); TIMER_CALLBACK_MEMBER(deassert_write); TIMER_CALLBACK_MEMBER(deassert_read); 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 *m_cmd_timer; emu_timer *m_complete_write_timer; emu_timer *m_deassert_write_timer; emu_timer *m_deassert_read_timer; 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 DECLARE_DEVICE_TYPE(WD2010, wd2010_device) #endif // MAME_MACHINE_WD2010_H