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.node->field);	\
13 }
14 
15 static ssize_t
16 compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
17 {
18 	struct of_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->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 
41 static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
42 			      char *buf)
43 {
44 	struct of_device *ofdev = to_of_device(dev);
45 	int len;
46 
47 	len = of_device_get_modalias(ofdev, buf, PAGE_SIZE);
48 
49 	buf[len] = '\n';
50 	buf[len+1] = 0;
51 
52 	return len+1;
53 }
54 
55 macio_config_of_attr (name, "%s\n");
56 macio_config_of_attr (type, "%s\n");
57 
58 struct device_attribute macio_dev_attrs[] = {
59 	__ATTR_RO(name),
60 	__ATTR_RO(type),
61 	__ATTR_RO(compatible),
62 	__ATTR_RO(modalias),
63 	__ATTR_NULL
64 };
65