ofw_disk.c revision 67204 
1f/*
2 * Copyright (C) 2000 Benno Rice.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * $FreeBSD: head/sys/boot/ofw/libofw/ofw_disk.c 67204 2000-10-16 10:46:22Z obrien $
26 */
27
28/*
29 * Disk I/O routines using Open Firmware
30 */
31
32#include <sys/param.h>
33#include <sys/disklabel.h>
34#include <sys/disklabel_mbr.h>
35
36#include <netinet/in.h>
37
38#include <stand.h>
39
40#include "bootstrap.h"
41#include "libofw.h"
42#include "openfirm.h"
43
44static int	ofwd_init(void);
45static int	ofwd_strategy(void *devdata, int flag, daddr_t dblk,
46				size_t size, char *buf, size_t *rsize);
47static int	ofwd_open(struct open_file *f, ...);
48static int	ofwd_close(struct open_file *f);
49static void	ofwd_print(int verbose);
50
51struct devsw ofwdisk = {
52	"disk",
53	DEVT_DISK,
54	ofwd_init,
55	ofwd_strategy,
56	ofwd_open,
57	ofwd_close,
58	noioctl,
59	ofwd_print
60};
61
62static struct ofwdinfo {
63	int	ofwd_unit;
64	char	ofwd_path[255];
65} ofwdinfo[MAXDEV];
66static int nofwdinfo = 0;
67
68static int
69ofwd_init(void)
70{
71	int ret;
72	char devpath[255];
73	ihandle_t instance;
74
75	ofw_devsearch_init();
76	while((ret = ofw_devsearch("block", devpath)) != 0) {
77		if (ret == -1)
78			return (1);
79
80		instance = OF_open(devpath);
81		if (instance != -1) {
82			ofwdinfo[nofwdinfo].ofwd_unit = nofwdinfo;
83			strncpy(ofwdinfo[nofwdinfo].ofwd_path, devpath, 255);
84			printf("disk%d is %s\n", nofwdinfo, devpath);
85			nofwdinfo++;
86			OF_close(instance);
87		}
88
89		if (nofwdinfo > MAXDEV) {
90			printf("Hit MAXDEV probing disks.\n");
91			return (1);
92		}
93	}
94
95	return (0);
96}
97
98static int
99ofwd_strategy(void *devdata, int flag, daddr_t dblk, size_t size, char *buf,
100    size_t *rsize)
101{
102	return (0);
103}
104
105static int
106ofwd_open(struct open_file *f, ...)
107{
108	return (0);
109}
110
111static int
112ofwd_close(struct open_file *f)
113{
114	return (0);
115}
116
117static void
118ofwd_print(int verbose)
119{
120	printf("ofwd_print called.\n");
121	return;
122}
123