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| 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 |
| 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 | |
| 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 | |
| 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 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9
