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, fmt: "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, fmt: "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(to: buf, count, ppos: &off, from: &cd, available: 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 | |