zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/net/atm/atm_sysfs.c b/ap/os/linux/linux-3.4.x/net/atm/atm_sysfs.c
new file mode 100644
index 0000000..f49da58
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/atm/atm_sysfs.c
@@ -0,0 +1,200 @@
+/* ATM driver model support. */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/kobject.h>
+#include <linux/atmdev.h>
+#include "common.h"
+#include "resources.h"
+
+#define to_atm_dev(cldev) container_of(cldev, struct atm_dev, class_dev)
+
+static ssize_t show_type(struct device *cdev,
+ struct device_attribute *attr, char *buf)
+{
+ struct atm_dev *adev = to_atm_dev(cdev);
+ return sprintf(buf, "%s\n", adev->type);
+}
+
+static ssize_t show_address(struct device *cdev,
+ struct device_attribute *attr, char *buf)
+{
+ char *pos = buf;
+ struct atm_dev *adev = to_atm_dev(cdev);
+ int i;
+
+ for (i = 0; i < (ESI_LEN - 1); i++)
+ pos += sprintf(pos, "%02x:", adev->esi[i]);
+ pos += sprintf(pos, "%02x\n", adev->esi[i]);
+
+ return pos - buf;
+}
+
+static ssize_t show_atmaddress(struct device *cdev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long flags;
+ char *pos = buf;
+ struct atm_dev *adev = to_atm_dev(cdev);
+ struct atm_dev_addr *aaddr;
+ int bin[] = { 1, 2, 10, 6, 1 }, *fmt = bin;
+ int i, j;
+
+ spin_lock_irqsave(&adev->lock, flags);
+ list_for_each_entry(aaddr, &adev->local, entry) {
+ for (i = 0, j = 0; i < ATM_ESA_LEN; ++i, ++j) {
+ if (j == *fmt) {
+ pos += sprintf(pos, ".");
+ ++fmt;
+ j = 0;
+ }
+ pos += sprintf(pos, "%02x",
+ aaddr->addr.sas_addr.prv[i]);
+ }
+ pos += sprintf(pos, "\n");
+ }
+ spin_unlock_irqrestore(&adev->lock, flags);
+
+ return pos - buf;
+}
+
+static ssize_t show_atmindex(struct device *cdev,
+ struct device_attribute *attr, char *buf)
+{
+ struct atm_dev *adev = to_atm_dev(cdev);
+
+ return sprintf(buf, "%d\n", adev->number);
+}
+
+static ssize_t show_carrier(struct device *cdev,
+ struct device_attribute *attr, char *buf)
+{
+ char *pos = buf;
+ struct atm_dev *adev = to_atm_dev(cdev);
+
+ pos += sprintf(pos, "%d\n",
+ adev->signal == ATM_PHY_SIG_LOST ? 0 : 1);
+
+ return pos - buf;
+}
+
+static ssize_t show_link_rate(struct device *cdev,
+ struct device_attribute *attr, char *buf)
+{
+ char *pos = buf;
+ struct atm_dev *adev = to_atm_dev(cdev);
+ int link_rate;
+
+ /* show the link rate, not the data rate */
+ switch (adev->link_rate) {
+ case ATM_OC3_PCR:
+ link_rate = 155520000;
+ break;
+ case ATM_OC12_PCR:
+ link_rate = 622080000;
+ break;
+ case ATM_25_PCR:
+ link_rate = 25600000;
+ break;
+ default:
+ link_rate = adev->link_rate * 8 * 53;
+ }
+ pos += sprintf(pos, "%d\n", link_rate);
+
+ return pos - buf;
+}
+
+static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
+static DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL);
+static DEVICE_ATTR(atmindex, S_IRUGO, show_atmindex, NULL);
+static DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL);
+static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
+static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);
+
+static struct device_attribute *atm_attrs[] = {
+ &dev_attr_atmaddress,
+ &dev_attr_address,
+ &dev_attr_atmindex,
+ &dev_attr_carrier,
+ &dev_attr_type,
+ &dev_attr_link_rate,
+ NULL
+};
+
+
+static int atm_uevent(struct device *cdev, struct kobj_uevent_env *env)
+{
+ struct atm_dev *adev;
+
+ if (!cdev)
+ return -ENODEV;
+
+ adev = to_atm_dev(cdev);
+ if (!adev)
+ return -ENODEV;
+
+ if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void atm_release(struct device *cdev)
+{
+ struct atm_dev *adev = to_atm_dev(cdev);
+
+ kfree(adev);
+}
+
+static struct class atm_class = {
+ .name = "atm",
+ .dev_release = atm_release,
+ .dev_uevent = atm_uevent,
+};
+
+int atm_register_sysfs(struct atm_dev *adev, struct device *parent)
+{
+ struct device *cdev = &adev->class_dev;
+ int i, j, err;
+
+ cdev->class = &atm_class;
+ cdev->parent = parent;
+ dev_set_drvdata(cdev, adev);
+
+ dev_set_name(cdev, "%s%d", adev->type, adev->number);
+ err = device_register(cdev);
+ if (err < 0)
+ return err;
+
+ for (i = 0; atm_attrs[i]; i++) {
+ err = device_create_file(cdev, atm_attrs[i]);
+ if (err)
+ goto err_out;
+ }
+
+ return 0;
+
+err_out:
+ for (j = 0; j < i; j++)
+ device_remove_file(cdev, atm_attrs[j]);
+ device_del(cdev);
+ return err;
+}
+
+void atm_unregister_sysfs(struct atm_dev *adev)
+{
+ struct device *cdev = &adev->class_dev;
+
+ device_del(cdev);
+}
+
+int __init atm_sysfs_init(void)
+{
+ return class_register(&atm_class);
+}
+
+void __exit atm_sysfs_exit(void)
+{
+ class_unregister(&atm_class);
+}