1 #include <linux/kernel.h>
2 #include <linux/stat.h>
3 #include <asm/macio.h>
4
5
6 #define macio_config_of_attr(field, format_string) \
7 static ssize_t \
8 field##_show (struct device *dev, struct device_attribute *attr, \
9 char *buf) \
10 { \
11 struct macio_dev *mdev = to_macio_device (dev); \
12 return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \
13 }
14
15 static ssize_t
compatible_show(struct device * dev,struct device_attribute * attr,char * buf)16 compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
17 {
18 struct platform_device *of;
19 const char *compat;
20 int cplen;
21 int length = 0;
22
23 of = &to_macio_device (dev)->ofdev;
24 compat = of_get_property(of->dev.of_node, "compatible", &cplen);
25 if (!compat) {
26 *buf = '\0';
27 return 0;
28 }
29 while (cplen > 0) {
30 int l;
31 length += sprintf (buf, "%s\n", compat);
32 buf += length;
33 l = strlen (compat) + 1;
34 compat += l;
35 cplen -= l;
36 }
37
38 return length;
39 }
40
modalias_show(struct device * dev,struct device_attribute * attr,char * buf)41 static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
42 char *buf)
43 {
44 int len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
45
46 buf[len] = '\n';
47 buf[len+1] = 0;
48
49 return len+1;
50 }
51
devspec_show(struct device * dev,struct device_attribute * attr,char * buf)52 static ssize_t devspec_show(struct device *dev,
53 struct device_attribute *attr, char *buf)
54 {
55 struct platform_device *ofdev;
56
57 ofdev = to_platform_device(dev);
58 return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name);
59 }
60
61 macio_config_of_attr (name, "%s\n");
62 macio_config_of_attr (type, "%s\n");
63
64 struct device_attribute macio_dev_attrs[] = {
65 __ATTR_RO(name),
66 __ATTR_RO(type),
67 __ATTR_RO(compatible),
68 __ATTR_RO(modalias),
69 __ATTR_RO(devspec),
70 __ATTR_NULL
71 };
72