wdvar.h revision 1.8 
1/*	$NetBSD: wdvar.h,v 1.8 2007/10/17 19:54:10 garbled 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#include <dev/pci/pciidereg.h>
39
40#include <mips/cpuregs.h>
41
42#include <sys/disklabel.h>
43#include <sys/bootblock.h>
44
45#define WDC_TIMEOUT		2000000
46#define PCIIDE_CHANNEL_NDEV	2
47#define NUNITS			(PCIIDE_CHANNEL_NDEV * PCIIDE_NUM_CHANNELS)
48#define WDC_NPORTS		8	/* XXX */
49#define WDC_NSHADOWREG		2	/* XXX */
50
51struct wdc_channel {
52	volatile uint8_t *c_cmdbase;
53	volatile uint8_t *c_ctlbase;
54	volatile uint8_t *c_cmdreg[WDC_NPORTS + WDC_NSHADOWREG];
55	volatile uint16_t *c_data;
56
57	uint8_t compatchan;
58};
59
60#define WDC_READ_REG(chp, reg)		*(chp)->c_cmdreg[(reg)]
61#define WDC_WRITE_REG(chp, reg, val)	*(chp)->c_cmdreg[(reg)] = (val)
62#define WDC_READ_CTLREG(chp, reg)	(chp)->c_ctlbase[(reg)]
63#define WDC_WRITE_CTLREG(chp, reg, val)	(chp)->c_ctlbase[(reg)] = (val)
64#define WDC_READ_DATA(chp)		*(chp)->c_data
65
66struct wd_softc {
67#define WDF_LBA		0x0001
68#define WDF_LBA48	0x0002
69	uint16_t sc_flags;
70
71	u_int sc_part;
72	u_int sc_unit;
73
74	uint64_t sc_capacity;
75
76	struct ataparams sc_params;
77	struct disklabel sc_label;
78	struct wdc_channel sc_channel;
79};
80
81struct wdc_command {
82	uint8_t drive;		/* drive id */
83
84	uint8_t r_command;	/* Parameters to upload to registers */
85	uint8_t r_head;
86	uint16_t r_cyl;
87	uint8_t r_sector;
88	uint8_t r_count;
89	uint8_t r_precomp;
90
91	uint16_t bcount;
92	void *data;
93
94	uint64_t r_blkno;
95};
96
97int	wdc_init(struct wd_softc *, u_int *);
98int	wdccommand(struct wd_softc *, struct wdc_command *);
99int	wdccommandext(struct wd_softc *, struct wdc_command *);
100int	wdc_exec_read(struct wd_softc *, uint8_t, daddr_t, void *);
101int	wdc_exec_identify(struct wd_softc *, void *);
102
103int	pciide_init(struct wdc_channel *, u_int *);
104
105#endif /* _STAND_WDVAR_H */
106