GNU Linux-libre 5.10.219-gnu1
[releases.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 name##_show(struct device *dev,                          \
27                            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_RO(name);
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 serial_show(struct device *dev, struct device_attribute *attr,
42                            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 static DEVICE_ATTR_RO(serial);
50
51 static ssize_t resource_show(struct device *dev, struct device_attribute *attr,
52                              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 static DEVICE_ATTR_RO(resource);
62
63 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
64                              char *buf)
65 {
66         struct zorro_dev *z = to_zorro_dev(dev);
67
68         return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
69 }
70 static DEVICE_ATTR_RO(modalias);
71
72 static struct attribute *zorro_device_attrs[] = {
73         &dev_attr_id.attr,
74         &dev_attr_type.attr,
75         &dev_attr_serial.attr,
76         &dev_attr_slotaddr.attr,
77         &dev_attr_slotsize.attr,
78         &dev_attr_resource.attr,
79         &dev_attr_modalias.attr,
80         NULL
81 };
82
83 static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
84                                  struct bin_attribute *bin_attr,
85                                  char *buf, loff_t off, size_t count)
86 {
87         struct zorro_dev *z = to_zorro_dev(kobj_to_dev(kobj));
88         struct ConfigDev cd;
89
90         /* Construct a ConfigDev */
91         memset(&cd, 0, sizeof(cd));
92         cd.cd_Rom = z->rom;
93         cd.cd_SlotAddr = cpu_to_be16(z->slotaddr);
94         cd.cd_SlotSize = cpu_to_be16(z->slotsize);
95         cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
96         cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
97
98         return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
99 }
100
101 static struct bin_attribute zorro_config_attr = {
102         .attr = {
103                 .name = "config",
104                 .mode = S_IRUGO,
105         },
106         .size = sizeof(struct ConfigDev),
107         .read = zorro_read_config,
108 };
109
110 static struct bin_attribute *zorro_device_bin_attrs[] = {
111         &zorro_config_attr,
112         NULL
113 };
114
115 static const struct attribute_group zorro_device_attr_group = {
116         .attrs          = zorro_device_attrs,
117         .bin_attrs      = zorro_device_bin_attrs,
118 };
119
120 const struct attribute_group *zorro_device_attribute_groups[] = {
121         &zorro_device_attr_group,
122         NULL
123 };