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71 lines
1.5 KiB
71 lines
1.5 KiB
#include <linux/kernel.h> |
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#include <linux/stat.h> |
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#include <asm/macio.h> |
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#define macio_config_of_attr(field, format_string) \ |
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static ssize_t \ |
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field##_show (struct device *dev, struct device_attribute *attr, \ |
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char *buf) \ |
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{ \ |
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struct macio_dev *mdev = to_macio_device (dev); \ |
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return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \ |
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} |
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static ssize_t |
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compatible_show (struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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struct platform_device *of; |
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const char *compat; |
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int cplen; |
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int length = 0; |
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of = &to_macio_device (dev)->ofdev; |
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compat = of_get_property(of->dev.of_node, "compatible", &cplen); |
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if (!compat) { |
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*buf = '\0'; |
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return 0; |
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} |
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while (cplen > 0) { |
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int l; |
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length += sprintf (buf, "%s\n", compat); |
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buf += length; |
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l = strlen (compat) + 1; |
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compat += l; |
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cplen -= l; |
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} |
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return length; |
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} |
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static ssize_t modalias_show (struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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int len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2); |
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buf[len] = '\n'; |
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buf[len+1] = 0; |
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return len+1; |
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} |
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static ssize_t devspec_show(struct device *dev, |
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struct device_attribute *attr, char *buf) |
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{ |
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struct platform_device *ofdev; |
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ofdev = to_platform_device(dev); |
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return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name); |
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} |
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macio_config_of_attr (name, "%s\n"); |
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macio_config_of_attr (type, "%s\n"); |
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struct device_attribute macio_dev_attrs[] = { |
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__ATTR_RO(name), |
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__ATTR_RO(type), |
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__ATTR_RO(compatible), |
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__ATTR_RO(modalias), |
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__ATTR_RO(devspec), |
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__ATTR_NULL |
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};
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