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
show_serial(struct device * dev,struct device_attribute * attr,char * buf)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
zorro_show_resource(struct device * dev,struct device_attribute * attr,char * buf)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
zorro_read_config(struct file * filp,struct kobject * kobj,struct bin_attribute * bin_attr,char * buf,loff_t off,size_t count)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
modalias_show(struct device * dev,struct device_attribute * attr,char * buf)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
zorro_create_sysfs_dev_files(struct zorro_dev * z)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
121