diff options
Diffstat (limited to 'src/devices/machine/spg290_cdservo.h')
-rw-r--r-- | src/devices/machine/spg290_cdservo.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/devices/machine/spg290_cdservo.h b/src/devices/machine/spg290_cdservo.h new file mode 100644 index 00000000000..790e7b4c28d --- /dev/null +++ b/src/devices/machine/spg290_cdservo.h @@ -0,0 +1,75 @@ +// 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, uint32_t clock); + + template <typename T> + spg290_cdservo_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&cdrom_tag) + : spg290_cdservo_device(mconfig, tag, owner, clock) + { + m_cdrom.set_tag(std::forward<T>(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; + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; + +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<cdrom_image_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<uint32_t[]> m_dsp_memory; + std::unique_ptr<uint8_t[]> 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 |