Previous

199869 Revisions

Next

r23687 Thursday 13th June, 2013 at 20:52:00 UTC by smf
simplified ide_device_interface (nw)

[src/emu/machine]

idehd.c idehd.h

trunk/src/emu/machine/idehd.c

r23686	r23687
124	124
125	125	/* standard CHS */
126	126	else
127		return (m_cur_cylinder * get_heads() + m_cur_head) * get_sectors() + m_cur_sector - 1;
	127	return (m_cur_cylinder * m_num_heads + m_cur_head) * m_num_sectors + m_cur_sector - 1;
128	128	}
129	129
130	130
r23686	r23687
409	409	{
410	410	/* sectors are 1-based */
411	411	m_cur_sector++;
412		if (m_cur_sector > get_sectors())
	412	if (m_cur_sector > m_num_sectors)
413	413	{
414	414	/* heads are 0 based */
415	415	m_cur_sector = 1;
416	416	m_cur_head++;
417		if (m_cur_head >= get_heads())
	417	if (m_cur_head >= m_num_heads)
418	418	{
419	419	m_cur_head = 0;
420	420	m_cur_cylinder++;

trunk/src/emu/machine/idehd.h

r23686	r23687
34	34	virtual DECLARE_WRITE16_MEMBER(write_cs0) = 0;
35	35	virtual DECLARE_WRITE16_MEMBER(write_cs1) = 0;
36	36
37		UINT8 *get_features() { return m_features;}
	37	virtual UINT8 *get_features() = 0;
38	38
39		UINT16 get_cylinders() { return m_num_cylinders; }
40		UINT16 get_sectors() { return m_num_sectors; }
41		UINT16 get_heads() { return m_num_heads; }
42		virtual bool is_ready() { return true; }
43		virtual void read_key(UINT8 key[]) { }
44
45	39	UINT8           m_master_password_enable;
46	40	UINT8           m_user_password_enable;
47	41	const UINT8 *   m_master_password;
48	42	const UINT8 *   m_user_password;
49	43
50		UINT8           m_gnetreadlock;
51
52	44	int m_csel;
53	45	int m_dasp;
54	46
55	47	devcb2_write_line m_irq_handler;
56	48	devcb2_write_line m_dmarq_handler;
57
58		protected:
59		UINT8           m_features[IDE_DISK_SECTOR_SIZE];
60		UINT16          m_num_cylinders;
61		UINT8           m_num_sectors;
62		UINT8           m_num_heads;
63	49	};
64	50
65	51	class ide_mass_storage_device : public device_t,
r23686	r23687
80	66	virtual DECLARE_WRITE16_MEMBER(write_cs0);
81	67	virtual DECLARE_WRITE16_MEMBER(write_cs1);
82	68
	69	virtual UINT8 *get_features() { return m_features; }
	70
83	71	protected:
84	72	virtual void device_start();
85	73	virtual void device_reset();
86	74	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
87	75
	76	virtual bool is_ready() = 0;
	77	virtual void read_key(UINT8 key[]) = 0;
	78
	79	UINT8           m_gnetreadlock;
	80
	81	UINT8           m_features[IDE_DISK_SECTOR_SIZE];
	82	UINT16          m_num_cylinders;
	83	UINT8           m_num_sectors;
	84	UINT8           m_num_heads;
	85
88	86	private:
89	87	UINT32 lba_address();
90		void set_geometry(UINT8 sectors, UINT8 heads) { m_num_sectors= sectors; m_num_heads=heads; }
	88	void set_geometry(UINT8 sectors, UINT8 heads) { m_num_sectors = sectors; m_num_heads = heads; }
91	89	void read_sector_done();
92	90	void write_sector_done();
93	91	void read_next_sector();
r23686	r23687
141	139
142	140	virtual int  read_sector(UINT32 lba, void *buffer) { return hard_disk_read(m_disk, lba, buffer); }
143	141	virtual int  write_sector(UINT32 lba, const void *buffer) { return hard_disk_write(m_disk, lba, buffer); }
144		virtual void read_key(UINT8 key[]);
	142
145	143	protected:
146	144	// device-level overrides
147	145	virtual void device_reset();
r23686	r23687
149	147	// optional information overrides
150	148	virtual machine_config_constructor device_mconfig_additions() const;
151	149
	150	virtual bool is_ready() { return (m_disk != NULL); }
	151	virtual void read_key(UINT8 key[]);
	152
152	153	void ide_build_features();
153		virtual bool is_ready() { return (m_disk != NULL); }
154		protected:
	154
155	155	chd_file       *m_handle;
156	156	hard_disk_file *m_disk;
157	157	};

Previous

199869 Revisions

Next

---

© 1997-2024 The MAME Team