Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / dio / dio-sysfs.c

diff --git a/kernel/drivers/dio/dio-sysfs.c b/kernel/drivers/dio/dio-sysfs.c
new file mode 100644 (file)
index 0000000..ee1a3b5
--- /dev/null
+++ b/kernel/drivers/dio/dio-sysfs.c
@@ -0,0 +1,82 @@
+/*
+ *  File Attributes for DIO Devices
+ *
+ *  Copyright (C) 2004 Jochen Friedrich
+ *
+ *  Loosely based on drivers/pci/pci-sysfs.c and drivers/zorro/zorro-sysfs.c
+ *
+ *  This file is subject to the terms and conditions of the GNU General Public
+ *  License.  See the file COPYING in the main directory of this archive
+ *  for more details.
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/dio.h>
+#include <linux/stat.h>
+
+/* show configuration fields */
+
+static ssize_t dio_show_id(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct dio_dev *d;
+
+       d = to_dio_dev(dev);
+       return sprintf(buf, "0x%02x\n", (d->id & 0xff));
+}
+static DEVICE_ATTR(id, S_IRUGO, dio_show_id, NULL);
+
+static ssize_t dio_show_ipl(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct dio_dev *d;
+
+       d = to_dio_dev(dev);
+       return sprintf(buf, "0x%02x\n", d->ipl);
+}
+static DEVICE_ATTR(ipl, S_IRUGO, dio_show_ipl, NULL);
+
+static ssize_t dio_show_secid(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct dio_dev *d;
+
+       d = to_dio_dev(dev);
+       return sprintf(buf, "0x%02x\n", ((d->id >> 8)& 0xff));
+}
+static DEVICE_ATTR(secid, S_IRUGO, dio_show_secid, NULL);
+
+static ssize_t dio_show_name(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct dio_dev *d;
+
+       d = to_dio_dev(dev);
+       return sprintf(buf, "%s\n", d->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, dio_show_name, NULL);
+
+static ssize_t dio_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct dio_dev *d = to_dio_dev(dev);
+
+       return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
+                      (unsigned long)dio_resource_start(d),
+                      (unsigned long)dio_resource_end(d),
+                      dio_resource_flags(d));
+}
+static DEVICE_ATTR(resource, S_IRUGO, dio_show_resource, NULL);
+
+int dio_create_sysfs_dev_files(struct dio_dev *d)
+{
+       struct device *dev = &d->dev;
+       int error;
+
+       /* current configuration's attributes */
+       if ((error = device_create_file(dev, &dev_attr_id)) ||
+           (error = device_create_file(dev, &dev_attr_ipl)) ||
+           (error = device_create_file(dev, &dev_attr_secid)) ||
+           (error = device_create_file(dev, &dev_attr_name)) ||
+           (error = device_create_file(dev, &dev_attr_resource)))
+               return error;
+
+       return 0;
+}
+