// license:BSD-3-Clause // copyright-holders:Sandro Ronco #ifndef MAME_MACHINE_SPG290_CDSERVO_H #define MAME_MACHINE_SPG290_CDSERVO_H #pragma once #include "imagedev/chd_cd.h" class spg290_cdservo_device : public device_t { public: spg290_cdservo_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock); template spg290_cdservo_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock, T &&cdrom_tag) : spg290_cdservo_device(mconfig, tag, owner, clock) { m_cdrom.set_tag(std::forward(cdrom_tag)); } void write(offs_t offset, uint32_t data, uint32_t mem_mask); uint32_t read(offs_t offset, uint32_t mem_mask); auto irq_cb() { return m_irq_cb.bind(); } auto space_write_cb() { return m_space_write_cb.bind(); } protected: virtual void device_start() override; virtual void device_reset() override; TIMER_CALLBACK_MEMBER(cd_update); private: void change_status(); void add_qsub(int sector, uint8_t addrctrl, uint8_t track, uint8_t index, uint32_t rel_msf, uint32_t abs_msf, uint16_t crc16=0); void generate_qsub(cdrom_file *cdrom); void servo_cmd_r(); void servo_cmd_w(); optional_device m_cdrom; devcb_write_line m_irq_cb; devcb_write8 m_space_write_cb; emu_timer *m_cdtimer; uint32_t m_addr; uint32_t m_data; uint32_t m_buf_start; uint32_t m_buf_end; uint32_t m_buf_ptr; uint8_t m_speed; uint8_t m_seek_min; uint8_t m_seek_sec; uint8_t m_seek_frm; uint32_t m_seek_lba; uint32_t m_sector_size; uint32_t m_dsp_data; bool m_frame_found; uint32_t m_control0; uint32_t m_control1; uint16_t m_skip; uint32_t m_dsp_regs[0x10]; std::unique_ptr m_dsp_memory; std::unique_ptr m_qsub; uint32_t m_tot_sectors; int m_cur_sector; }; DECLARE_DEVICE_TYPE(SPG290_CDSERVO, spg290_cdservo_device) #endif // MAME_MACHINE_SPG290_CDSERVO_H