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 = 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 *of; 45 const char *compat; 46 int cplen; 47 int length; 48 49 of = &to_macio_device (dev)->ofdev; 50 compat = get_property(of->node, "compatible", &cplen); 51 if (!compat) compat = "", cplen = 1; 52 length = sprintf (buf, "of:N%sT%s", of->node->name, of->node->type); 53 buf += length; 54 while (cplen > 0) { 55 int l; 56 length += sprintf (buf, "C%s", compat); 57 buf += length; 58 l = strlen (compat) + 1; 59 compat += l; 60 cplen -= l; 61 } 62 63 return length; 64 } 65 66 macio_config_of_attr (name, "%s\n"); 67 macio_config_of_attr (type, "%s\n"); 68 69 struct device_attribute macio_dev_attrs[] = { 70 __ATTR_RO(name), 71 __ATTR_RO(type), 72 __ATTR_RO(compatible), 73 __ATTR_RO(modalias), 74 __ATTR_NULL 75 }; 76