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
serial_show(struct device * dev,struct device_attribute * attr,char * buf)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
resource_show(struct device * dev,struct device_attribute * attr,char * buf)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
modalias_show(struct device * dev,struct device_attribute * attr,char * buf)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
zorro_read_config(struct file * filp,struct kobject * kobj,struct bin_attribute * bin_attr,char * buf,loff_t off,size_t count)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 };
124