808b4f8675c5609ccd195deb755c40233ddf3059
[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
19 #include "zorro.h"
20
21
22 /* show configuration fields */
23 #define zorro_config_attr(name, field, format_string)                   \
24 static ssize_t                                                          \
25 show_##name(struct device *dev, struct device_attribute *attr, char *buf)                               \
26 {                                                                       \
27         struct zorro_dev *z;                                            \
28                                                                         \
29         z = to_zorro_dev(dev);                                          \
30         return sprintf(buf, format_string, z->field);                   \
31 }                                                                       \
32 static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
33
34 zorro_config_attr(id, id, "0x%08x\n");
35 zorro_config_attr(type, rom.er_Type, "0x%02x\n");
36 zorro_config_attr(serial, rom.er_SerialNumber, "0x%08x\n");
37 zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
38 zorro_config_attr(slotsize, slotsize, "0x%04x\n");
39
40 static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
41 {
42         struct zorro_dev *z = to_zorro_dev(dev);
43
44         return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
45                        (unsigned long)zorro_resource_start(z),
46                        (unsigned long)zorro_resource_end(z),
47                        zorro_resource_flags(z));
48 }
49
50 static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
51
52 static ssize_t zorro_read_config(struct kobject *kobj,
53                                  struct bin_attribute *bin_attr,
54                                  char *buf, loff_t off, size_t count)
55 {
56         struct zorro_dev *z = to_zorro_dev(container_of(kobj, struct device,
57                                            kobj));
58         struct ConfigDev cd;
59         unsigned int size = sizeof(cd);
60
61         if (off > size)
62                 return 0;
63         if (off+count > size)
64                 count = size-off;
65
66         /* Construct a ConfigDev */
67         memset(&cd, 0, sizeof(cd));
68         cd.cd_Rom = z->rom;
69         cd.cd_SlotAddr = z->slotaddr;
70         cd.cd_SlotSize = z->slotsize;
71         cd.cd_BoardAddr = (void *)zorro_resource_start(z);
72         cd.cd_BoardSize = zorro_resource_len(z);
73
74         memcpy(buf, (void *)&cd+off, count);
75         return count;
76 }
77
78 static struct bin_attribute zorro_config_attr = {
79         .attr = {
80                 .name = "config",
81                 .mode = S_IRUGO,
82         },
83         .size = sizeof(struct ConfigDev),
84         .read = zorro_read_config,
85 };
86
87 void zorro_create_sysfs_dev_files(struct zorro_dev *z)
88 {
89         struct device *dev = &z->dev;
90
91         /* current configuration's attributes */
92         device_create_file(dev, &dev_attr_id);
93         device_create_file(dev, &dev_attr_type);
94         device_create_file(dev, &dev_attr_serial);
95         device_create_file(dev, &dev_attr_slotaddr);
96         device_create_file(dev, &dev_attr_slotsize);
97         device_create_file(dev, &dev_attr_resource);
98         sysfs_create_bin_file(&dev->kobj, &zorro_config_attr);
99 }
100