init android origin source code

1 files changed, 71 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/drivers/macintosh/macio_sysfs.c b/ANDROID_3.4.5/drivers/macintosh/macio_sysfs.c
new file mode 100644
index 00000000..8eb40afb
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/macintosh/macio_sysfs.c
@@ -0,0 +1,71 @@
+#include <linux/kernel.h>
+#include <linux/stat.h>
+#include <asm/macio.h>
+
+
+#define macio_config_of_attr(field, format_string)			\
+static ssize_t								\
+field##_show (struct device *dev, struct device_attribute *attr,	\
+              char *buf)						\
+{									\
+	struct macio_dev *mdev = to_macio_device (dev);			\
+	return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \
+}
+
+static ssize_t
+compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct platform_device *of;
+	const char *compat;
+	int cplen;
+	int length = 0;
+
+	of = &to_macio_device (dev)->ofdev;
+	compat = of_get_property(of->dev.of_node, "compatible", &cplen);
+	if (!compat) {
+		*buf = '\0';
+		return 0;
+	}
+	while (cplen > 0) {
+		int l;
+		length += sprintf (buf, "%s\n", compat);
+		buf += length;
+		l = strlen (compat) + 1;
+		compat += l;
+		cplen -= l;
+	}
+
+	return length;
+}
+
+static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
+			      char *buf)
+{
+	int len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
+
+	buf[len] = '\n';
+	buf[len+1] = 0;
+
+	return len+1;
+}
+
+static ssize_t devspec_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct platform_device *ofdev;
+
+	ofdev = to_platform_device(dev);
+	return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name);
+}
+
+macio_config_of_attr (name, "%s\n");
+macio_config_of_attr (type, "%s\n");
+
+struct device_attribute macio_dev_attrs[] = {
+	__ATTR_RO(name),
+	__ATTR_RO(type),
+	__ATTR_RO(compatible),
+	__ATTR_RO(modalias),
+	__ATTR_RO(devspec),
+	__ATTR_NULL
+};