zorro: use memory_read_from_buffer
[linux-2.6.git] / drivers / zorro / zorro-sysfs.c
1 /*
2  *  File Attributes for Zorro Devices
3  *
4  *  Copyright (C) 2003 Geert Uytterhoeven
5  *
6  *  Loosely based on drivers/pci/pci-sysfs.c
7  *
8  *  This file is subject to the terms and conditions of the GNU General Public
9  *  License.  See the file COPYING in the main directory of this archive
10  *  for more details.
11  */
12
13
14 #include <linux/kernel.h>
15 #include <linux/zorro.h>
16 #include <linux/stat.h>
17 #include <linux/string.h>
18 #include <linux/fs.h>
19
20 #include "zorro.h"
21
22
23 /* show configuration fields */
24 #define zorro_config_attr(name, field, format_string)                   \
25 static ssize_t                                                          \
26 show_##name(struct device *dev, struct device_attribute *attr, char *buf)                               \
27 {                                                                       \
28         struct zorro_dev *z;                                            \
29                                                                         \
30         z = to_zorro_dev(dev);                                          \
31         return sprintf(buf, format_string, z->field);                   \
32 }                                                                       \
33 static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
34
35 zorro_config_attr(id, id, "0x%08x\n");
36 zorro_config_attr(type, rom.er_Type, "0x%02x\n");
37 zorro_config_attr(serial, rom.er_SerialNumber, "0x%08x\n");
38 zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
39 zorro_config_attr(slotsize, slotsize, "0x%04x\n");
40
41 static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
42 {
43         struct zorro_dev *z = to_zorro_dev(dev);
44
45         return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
46                        (unsigned long)zorro_resource_start(z),
47                        (unsigned long)zorro_resource_end(z),
48                        zorro_resource_flags(z));
49 }
50
51 static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
52
53 static ssize_t zorro_read_config(struct kobject *kobj,
54                                  struct bin_attribute *bin_attr,
55                                  char *buf, loff_t off, size_t count)
56 {
57         struct zorro_dev *z = to_zorro_dev(container_of(kobj, struct device,
58                                            kobj));
59         struct ConfigDev cd;
60
61         /* Construct a ConfigDev */
62         memset(&cd, 0, sizeof(cd));
63         cd.cd_Rom = z->rom;
64         cd.cd_SlotAddr = z->slotaddr;
65         cd.cd_SlotSize = z->slotsize;
66         cd.cd_BoardAddr = (void *)zorro_resource_start(z);
67         cd.cd_BoardSize = zorro_resource_len(z);
68
69         return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
70 }
71
72 static struct bin_attribute zorro_config_attr = {
73         .attr = {
74                 .name = "config",
75                 .mode = S_IRUGO,
76         },
77         .size = sizeof(struct ConfigDev),
78         .read = zorro_read_config,
79 };
80
81 void zorro_create_sysfs_dev_files(struct zorro_dev *z)
82 {
83         struct device *dev = &z->dev;
84
85         /* current configuration's attributes */
86         device_create_file(dev, &dev_attr_id);
87         device_create_file(dev, &dev_attr_type);
88         device_create_file(dev, &dev_attr_serial);
89         device_create_file(dev, &dev_attr_slotaddr);
90         device_create_file(dev, &dev_attr_slotsize);
91         device_create_file(dev, &dev_attr_resource);
92         sysfs_create_bin_file(&dev->kobj, &zorro_config_attr);
93 }
94