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Diffstat (limited to 'src/devices/machine/spg290_cdservo.h')
-rw-r--r--src/devices/machine/spg290_cdservo.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/src/devices/machine/spg290_cdservo.h b/src/devices/machine/spg290_cdservo.h
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index 00000000000..790e7b4c28d
--- /dev/null
+++ b/src/devices/machine/spg290_cdservo.h
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+// 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