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Merge commit 'v3.17' into next
[karo-tx-linux.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 <asm/byteorder.h>
20
21 #include "zorro.h"
22
23
24 /* show configuration fields */
25 #define zorro_config_attr(name, field, format_string)                   \
26 static ssize_t                                                          \
27 show_##name(struct device *dev, struct device_attribute *attr, char *buf)                               \
28 {                                                                       \
29         struct zorro_dev *z;                                            \
30                                                                         \
31         z = to_zorro_dev(dev);                                          \
32         return sprintf(buf, format_string, z->field);                   \
33 }                                                                       \
34 static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
35
36 zorro_config_attr(id, id, "0x%08x\n");
37 zorro_config_attr(type, rom.er_Type, "0x%02x\n");
38 zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
39 zorro_config_attr(slotsize, slotsize, "0x%04x\n");
40
41 static ssize_t
42 show_serial(struct device *dev, struct device_attribute *attr, char *buf)
43 {
44         struct zorro_dev *z;
45
46         z = to_zorro_dev(dev);
47         return sprintf(buf, "0x%08x\n", be32_to_cpu(z->rom.er_SerialNumber));
48 }
49
50 static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
51
52 static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
53 {
54         struct zorro_dev *z = to_zorro_dev(dev);
55
56         return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
57                        (unsigned long)zorro_resource_start(z),
58                        (unsigned long)zorro_resource_end(z),
59                        zorro_resource_flags(z));
60 }
61
62 static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
63
64 static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
65                                  struct bin_attribute *bin_attr,
66                                  char *buf, loff_t off, size_t count)
67 {
68         struct zorro_dev *z = to_zorro_dev(container_of(kobj, struct device,
69                                            kobj));
70         struct ConfigDev cd;
71
72         /* Construct a ConfigDev */
73         memset(&cd, 0, sizeof(cd));
74         cd.cd_Rom = z->rom;
75         cd.cd_SlotAddr = cpu_to_be16(z->slotaddr);
76         cd.cd_SlotSize = cpu_to_be16(z->slotsize);
77         cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
78         cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
79
80         return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
81 }
82
83 static struct bin_attribute zorro_config_attr = {
84         .attr = {
85                 .name = "config",
86                 .mode = S_IRUGO,
87         },
88         .size = sizeof(struct ConfigDev),
89         .read = zorro_read_config,
90 };
91
92 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
93                              char *buf)
94 {
95         struct zorro_dev *z = to_zorro_dev(dev);
96
97         return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
98 }
99
100 static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL);
101
102 int zorro_create_sysfs_dev_files(struct zorro_dev *z)
103 {
104         struct device *dev = &z->dev;
105         int error;
106
107         /* current configuration's attributes */
108         if ((error = device_create_file(dev, &dev_attr_id)) ||
109             (error = device_create_file(dev, &dev_attr_type)) ||
110             (error = device_create_file(dev, &dev_attr_serial)) ||
111             (error = device_create_file(dev, &dev_attr_slotaddr)) ||
112             (error = device_create_file(dev, &dev_attr_slotsize)) ||
113             (error = device_create_file(dev, &dev_attr_resource)) ||
114             (error = device_create_file(dev, &dev_attr_modalias)) ||
115             (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
116                 return error;
117
118         return 0;
119 }
120