1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* Copyright (C) 2004, 2005 by Basler Vision Technologies AG
* Author: Thomas Koeller <thomas.koeller@baslerweb.com>
*
* Procfs support for Basler eXcite
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/proc_fs.h>
#include <linux/stat.h>
#include <asm/page.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/rm9k-ocd.h>
#include <excite.h>
static int excite_get_unit_id(char *buf, char **addr, off_t offs, int size)
{
const int len = snprintf(buf, PAGE_SIZE, "%06x", unit_id);
const int w = len - offs;
*addr = buf + offs;
return w < size ? w : size;
}
static int
excite_bootrom_read(char *page, char **start, off_t off, int count,
int *eof, void *data)
{
void __iomem * src;
if (off >= EXCITE_SIZE_BOOTROM) {
*eof = 1;
return 0;
}
if ((off + count) > EXCITE_SIZE_BOOTROM)
count = EXCITE_SIZE_BOOTROM - off;
src = ioremap(EXCITE_PHYS_BOOTROM + off, count);
if (src) {
memcpy_fromio(page, src, count);
iounmap(src);
*start = page;
} else {
count = -ENOMEM;
}
return count;
}
void excite_procfs_init(void)
{
/* Create & populate /proc/excite */
struct proc_dir_entry * const pdir = proc_mkdir("excite", &proc_root);
if (pdir) {
struct proc_dir_entry * e;
e = create_proc_info_entry("unit_id", S_IRUGO, pdir,
excite_get_unit_id);
if (e) e->size = 6;
e = create_proc_read_entry("bootrom", S_IRUGO, pdir,
excite_bootrom_read, NULL);
if (e) e->size = EXCITE_SIZE_BOOTROM;
}
}
|
