wdvar.h revision 1.1 
1/*	$NetBSD: wdvar.h,v 1.1 2010/10/14 06:50:43 kiyohara Exp $	*/
2
3/*-
4 * Copyright (c) 2003 The NetBSD Foundation, Inc.
5 * Copyright (c) 2001 Dynarc AB, Sweden. All rights reserved.
6 *
7 * This code is derived from software written by Anders Magnusson,
8 * ragge@ludd.luth.se
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#ifndef _STAND_WDVAR_H
34#define _STAND_WDVAR_H
35
36#include <dev/ic/wdcreg.h>
37#include <dev/ata/atareg.h>
38
39#include <sys/disklabel.h>
40#include <sys/bootblock.h>
41
42#define WDC_TIMEOUT		2000000
43#define WDC_NPORTS		8	/* XXX */
44#define WDC_NSHADOWREG		2	/* XXX */
45
46struct wdc_channel {
47	int c_cmdbase;
48	int c_ctlbase;
49	int c_data;
50	int c_cmdreg[WDC_NPORTS + WDC_NSHADOWREG];
51};
52
53#define WDC_READ_REG(chp, reg)		inb((chp)->c_cmdreg[(reg)])
54#define WDC_WRITE_REG(chp, reg, val)	outb((chp)->c_cmdreg[(reg)], (val))
55#define WDC_READ_CTLREG(chp, reg)	inb((chp)->c_ctlbase)
56#define WDC_WRITE_CTLREG(chp, reg, val)	outb((chp)->c_ctlbase, (val))
57#define WDC_READ_DATA_STREAM(chp)	inw((chp)->c_data)
58#define WDC_READ_DATA(chp)		inwrb((chp)->c_data)
59
60struct wd_softc {
61#define WDF_LBA		0x0001
62#define WDF_LBA48	0x0002
63	uint16_t sc_flags;
64
65	u_int sc_part;
66	u_int sc_unit;
67	u_int sc_ctlr;
68
69	uint64_t sc_capacity;
70	uint32_t sc_capacity28;
71
72	struct ataparams sc_params;
73	struct disklabel sc_label;
74};
75
76struct wdc_command {
77	uint8_t drive;		/* drive id */
78
79	uint8_t r_command;	/* Parameters to upload to registers */
80	uint8_t r_head;
81	uint16_t r_cyl;
82	uint8_t r_sector;
83	uint8_t r_count;
84	uint8_t r_features;
85
86	uint16_t bcount;
87	void *data;
88
89	uint64_t r_blkno;
90};
91
92int	wdc_init(int);
93int	wdc_exec_identify(struct wd_softc *, void *);
94int	wdc_exec_read(struct wd_softc *, uint8_t, daddr_t, void *);
95
96#endif /* _STAND_WDVAR_H */
97